entity
type: Class
BFO_0000179: entity
BFO_0000180: Entity
IAO_0000112: Julius Caesar
IAO_0000112: Verdi’s Requiem
IAO_0000112: the Second World War
IAO_0000112: your body mass index
IAO_0000116: BFO 2 Reference: In all areas of empirical inquiry we encounter general terms of two sorts. First are general terms which refer to universals or types:animaltuberculosissurgical procedurediseaseSecond, are general terms used to refer to groups of entities which instantiate a given universal but do not correspond to the extension of any subuniversal of that universal because there is nothing intrinsic to the entities in question by virtue of which they – and only they – are counted as belonging to the given group. Examples are: animal purchased by the Emperortuberculosis diagnosed on a Wednesdaysurgical procedure performed on a patient from Stockholmperson identified as candidate for clinical trial #2056-555person who is signatory of Form 656-PPVpainting by Leonardo da VinciSuch terms, which represent what are called ‘specializations’ in [81
IAO_0000116: Entity doesn't have a closure axiom because the subclasses don't necessarily exhaust all possibilites. For example Werner Ceusters 'portions of reality' include 4 sorts, entities (as BFO construes them), universals, configurations, and relations. It is an open question as to whether entities as construed in BFO will at some point also include these other portions of reality. See, for example, 'How to track absolutely everything' at http://www.referent-tracking.com/_RTU/papers/CeustersICbookRevised.pdf
IAO_0000600: An entity is anything that exists or has existed or will exist. (axiom label in BFO2 Reference: [001-001])

Axiom
annotated source: entity
annotated property: IAO_0000116
annotated target: Entity doesn't have a closure axiom because the subclasses don't necessarily exhaust all possibilites. For example Werner Ceusters 'portions of reality' include 4 sorts, entities (as BFO construes them), universals, configurations, and relations. It is an open question as to whether entities as construed in BFO will at some point also include these other portions of reality. See, for example, 'How to track absolutely everything' at http://www.referent-tracking.com/_RTU/papers/CeustersICbookRevised.pdf
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/0000004
comment: per discussion with Barry Smith

Axiom
annotated source: entity
annotated property: IAO_0000600
annotated target: An entity is anything that exists or has existed or will exist. (axiom label in BFO2 Reference: [001-001])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/001-001

continuant
type: Class
subclass of: entity
disjoint with: occurrent
BFO_0000179: continuant
BFO_0000180: Continuant
IAO_0000116: BFO 2 Reference: Continuant entities are entities which can be sliced to yield parts only along the spatial dimension, yielding for example the parts of your table which we call its legs, its top, its nails. ‘My desk stretches from the window to the door. It has spatial parts, and can be sliced (in space) in two. With respect to time, however, a thing is a continuant.’ [60, p. 240
IAO_0000116: Continuant doesn't have a closure axiom because the subclasses don't necessarily exhaust all possibilites. For example, in an expansion involving bringing in some of Ceuster's other portions of reality, questions are raised as to whether universals are continuants
IAO_0000600: A continuant is an entity that persists, endures, or continues to exist through time while maintaining its identity. (axiom label in BFO2 Reference: [008-002])
IAO_0000601: if b is a continuant and if, for some t, c has_continuant_part b at t, then c is a continuant. (axiom label in BFO2 Reference: [126-001])
IAO_0000601: if b is a continuant and if, for some t, cis continuant_part of b at t, then c is a continuant. (axiom label in BFO2 Reference: [009-002])
IAO_0000601: if b is a material entity, then there is some temporal interval (referred to below as a one-dimensional temporal region) during which b exists. (axiom label in BFO2 Reference: [011-002])
IAO_0000602: (forall (x y) (if (and (Continuant x) (exists (t) (continuantPartOfAt y x t))) (Continuant y))) // axiom label in BFO2 CLIF: [009-002]
IAO_0000602: (forall (x y) (if (and (Continuant x) (exists (t) (hasContinuantPartOfAt y x t))) (Continuant y))) // axiom label in BFO2 CLIF: [126-001]
IAO_0000602: (forall (x) (if (Continuant x) (Entity x))) // axiom label in BFO2 CLIF: [008-002]
IAO_0000602: (forall (x) (if (Material Entity x) (exists (t) (and (TemporalRegion t) (existsAt x t))))) // axiom label in BFO2 CLIF: [011-002]

Axiom
annotated source: continuant
annotated property: IAO_0000602
annotated target: (forall (x) (if (Continuant x) (Entity x))) // axiom label in BFO2 CLIF: [008-002]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/008-002

Axiom
annotated source: continuant
annotated property: IAO_0000602
annotated target: (forall (x) (if (Material Entity x) (exists (t) (and (TemporalRegion t) (existsAt x t))))) // axiom label in BFO2 CLIF: [011-002]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/011-002

Axiom
annotated source: continuant
annotated property: IAO_0000116
annotated target: Continuant doesn't have a closure axiom because the subclasses don't necessarily exhaust all possibilites. For example, in an expansion involving bringing in some of Ceuster's other portions of reality, questions are raised as to whether universals are continuants
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/0000007

Axiom
annotated source: continuant
annotated property: IAO_0000600
annotated target: A continuant is an entity that persists, endures, or continues to exist through time while maintaining its identity. (axiom label in BFO2 Reference: [008-002])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/008-002

Axiom
annotated source: continuant
annotated property: IAO_0000601
annotated target: if b is a continuant and if, for some t, c has_continuant_part b at t, then c is a continuant. (axiom label in BFO2 Reference: [126-001])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/126-001

Axiom
annotated source: continuant
annotated property: IAO_0000601
annotated target: if b is a continuant and if, for some t, cis continuant_part of b at t, then c is a continuant. (axiom label in BFO2 Reference: [009-002])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/009-002

Axiom
annotated source: continuant
annotated property: IAO_0000601
annotated target: if b is a material entity, then there is some temporal interval (referred to below as a one-dimensional temporal region) during which b exists. (axiom label in BFO2 Reference: [011-002])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/011-002

Axiom
annotated source: continuant
annotated property: IAO_0000602
annotated target: (forall (x y) (if (and (Continuant x) (exists (t) (continuantPartOfAt y x t))) (Continuant y))) // axiom label in BFO2 CLIF: [009-002]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/009-002

Axiom
annotated source: continuant
annotated property: IAO_0000602
annotated target: (forall (x y) (if (and (Continuant x) (exists (t) (hasContinuantPartOfAt y x t))) (Continuant y))) // axiom label in BFO2 CLIF: [126-001]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/126-001

occurrent
type: Class
subclass of: entity
BFO_0000179: occurrent
BFO_0000180: Occurrent
IAO_0000116: BFO 2 Reference: every occurrent that is not a temporal or spatiotemporal region is s-dependent on some independent continuant that is not a spatial region
IAO_0000116: BFO 2 Reference: s-dependence obtains between every process and its participants in the sense that, as a matter of necessity, this process could not have existed unless these or those participants existed also. A process may have a succession of participants at different phases of its unfolding. Thus there may be different players on the field at different times during the course of a football game; but the process which is the entire game s-depends_on all of these players nonetheless. Some temporal parts of this process will s-depend_on on only some of the players.
IAO_0000116: Occurrent doesn't have a closure axiom because the subclasses don't necessarily exhaust all possibilites. An example would be the sum of a process and the process boundary of another process.
IAO_0000116: Simons uses different terminology for relations of occurrents to regions: Denote the spatio-temporal location of a given occurrent e by 'spn[e]' and call this region its span. We may say an occurrent is at its span, in any larger region, and covers any smaller region. Now suppose we have fixed a frame of reference so that we can speak not merely of spatio-temporal but also of spatial regions (places) and temporal regions (times). The spread of an occurrent, (relative to a frame of reference) is the space it exactly occupies, and its spell is likewise the time it exactly occupies. We write 'spr[e]' and `spl[e]' respectively for the spread and spell of e, omitting mention of the frame.
IAO_0000600: An occurrent is an entity that unfolds itself in time or it is the instantaneous boundary of such an entity (for example a beginning or an ending) or it is a temporal or spatiotemporal region which such an entity occupies_temporal_region or occupies_spatiotemporal_region. (axiom label in BFO2 Reference: [077-002])
IAO_0000601: Every occurrent occupies_spatiotemporal_region some spatiotemporal region. (axiom label in BFO2 Reference: [108-001])
IAO_0000601: b is an occurrent entity iff b is an entity that has temporal parts. (axiom label in BFO2 Reference: [079-001])
IAO_0000602: (forall (x) (if (Occurrent x) (exists (r) (and (SpatioTemporalRegion r) (occupiesSpatioTemporalRegion x r))))) // axiom label in BFO2 CLIF: [108-001]
IAO_0000602: (forall (x) (iff (Occurrent x) (and (Entity x) (exists (y) (temporalPartOf y x))))) // axiom label in BFO2 CLIF: [079-001]

Axiom
annotated source: occurrent
annotated property: IAO_0000116
annotated target: Occurrent doesn't have a closure axiom because the subclasses don't necessarily exhaust all possibilites. An example would be the sum of a process and the process boundary of another process.
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/0000006
comment: per discussion with Barry Smith

Axiom
annotated source: occurrent
annotated property: IAO_0000116
annotated target: Simons uses different terminology for relations of occurrents to regions: Denote the spatio-temporal location of a given occurrent e by 'spn[e]' and call this region its span. We may say an occurrent is at its span, in any larger region, and covers any smaller region. Now suppose we have fixed a frame of reference so that we can speak not merely of spatio-temporal but also of spatial regions (places) and temporal regions (times). The spread of an occurrent, (relative to a frame of reference) is the space it exactly occupies, and its spell is likewise the time it exactly occupies. We write 'spr[e]' and `spl[e]' respectively for the spread and spell of e, omitting mention of the frame.
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/0000012

Axiom
annotated source: occurrent
annotated property: IAO_0000600
annotated target: An occurrent is an entity that unfolds itself in time or it is the instantaneous boundary of such an entity (for example a beginning or an ending) or it is a temporal or spatiotemporal region which such an entity occupies_temporal_region or occupies_spatiotemporal_region. (axiom label in BFO2 Reference: [077-002])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/077-002

Axiom
annotated source: occurrent
annotated property: IAO_0000601
annotated target: Every occurrent occupies_spatiotemporal_region some spatiotemporal region. (axiom label in BFO2 Reference: [108-001])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/108-001

Axiom
annotated source: occurrent
annotated property: IAO_0000601
annotated target: b is an occurrent entity iff b is an entity that has temporal parts. (axiom label in BFO2 Reference: [079-001])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/079-001

Axiom
annotated source: occurrent
annotated property: IAO_0000602
annotated target: (forall (x) (if (Occurrent x) (exists (r) (and (SpatioTemporalRegion r) (occupiesSpatioTemporalRegion x r))))) // axiom label in BFO2 CLIF: [108-001]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/108-001

Axiom
annotated source: occurrent
annotated property: IAO_0000602
annotated target: (forall (x) (iff (Occurrent x) (and (Entity x) (exists (y) (temporalPartOf y x))))) // axiom label in BFO2 CLIF: [079-001]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/079-001

independent continuant
type: Class
subclass of: continuant
disjoint with: specifically dependent continuant
disjoint with: generically dependent continuant
BFO_0000179: ic
BFO_0000180: IndependentContinuant
IAO_0000112: a chair
IAO_0000112: a heart
IAO_0000112: a leg
IAO_0000112: a molecule
IAO_0000112: a spatial region
IAO_0000112: an atom
IAO_0000112: an orchestra.
IAO_0000112: an organism
IAO_0000112: the bottom right portion of a human torso
IAO_0000112: the interior of your mouth
IAO_0000115: b is an independent continuant = Def. b is a continuant which is such that there is no c and no t such that b s-depends_on c at t. (axiom label in BFO2 Reference: [017-002])
IAO_0000601: For any independent continuant b and any time t there is some spatial region r such that b is located_in r at t. (axiom label in BFO2 Reference: [134-001])
IAO_0000601: For every independent continuant b and time t during the region of time spanned by its life, there are entities which s-depends_on b during t. (axiom label in BFO2 Reference: [018-002])
IAO_0000602: (forall (x t) (if (IndependentContinuant x) (exists (r) (and (SpatialRegion r) (locatedInAt x r t))))) // axiom label in BFO2 CLIF: [134-001]
IAO_0000602: (forall (x t) (if (and (IndependentContinuant x) (existsAt x t)) (exists (y) (and (Entity y) (specificallyDependsOnAt y x t))))) // axiom label in BFO2 CLIF: [018-002]
IAO_0000602: (iff (IndependentContinuant a) (and (Continuant a) (not (exists (b t) (specificallyDependsOnAt a b t))))) // axiom label in BFO2 CLIF: [017-002]

Axiom
annotated source: independent continuant
annotated property: IAO_0000115
annotated target: b is an independent continuant = Def. b is a continuant which is such that there is no c and no t such that b s-depends_on c at t. (axiom label in BFO2 Reference: [017-002])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/017-002

Axiom
annotated source: independent continuant
annotated property: IAO_0000601
annotated target: For any independent continuant b and any time t there is some spatial region r such that b is located_in r at t. (axiom label in BFO2 Reference: [134-001])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/134-001

Axiom
annotated source: independent continuant
annotated property: IAO_0000601
annotated target: For every independent continuant b and time t during the region of time spanned by its life, there are entities which s-depends_on b during t. (axiom label in BFO2 Reference: [018-002])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/018-002

Axiom
annotated source: independent continuant
annotated property: IAO_0000602
annotated target: (forall (x t) (if (IndependentContinuant x) (exists (r) (and (SpatialRegion r) (locatedInAt x r t))))) // axiom label in BFO2 CLIF: [134-001]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/134-001

Axiom
annotated source: independent continuant
annotated property: IAO_0000602
annotated target: (forall (x t) (if (and (IndependentContinuant x) (existsAt x t)) (exists (y) (and (Entity y) (specificallyDependsOnAt y x t))))) // axiom label in BFO2 CLIF: [018-002]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/018-002

Axiom
annotated source: independent continuant
annotated property: IAO_0000602
annotated target: (iff (IndependentContinuant a) (and (Continuant a) (not (exists (b t) (specificallyDependsOnAt a b t))))) // axiom label in BFO2 CLIF: [017-002]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/017-002

process
type: Class
subclass of: occurrent
BFO_0000179: process
BFO_0000180: Process
IAO_0000112: a process of cell-division, \ a beating of the heart
IAO_0000112: a process of meiosis
IAO_0000112: a process of sleeping
IAO_0000112: the course of a disease
IAO_0000112: the flight of a bird
IAO_0000112: the life of an organism
IAO_0000112: your process of aging.
IAO_0000115: p is a process = Def. p is an occurrent that has temporal proper parts and for some time t, p s-depends_on some material entity at t. (axiom label in BFO2 Reference: [083-003])
IAO_0000116: BFO 2 Reference: The realm of occurrents is less pervasively marked by the presence of natural units than is the case in the realm of independent continuants. Thus there is here no counterpart of ‘object’. In BFO 1.0 ‘process’ served as such a counterpart. In BFO 2.0 ‘process’ is, rather, the occurrent counterpart of ‘material entity’. Those natural – as contrasted with engineered, which here means: deliberately executed – units which do exist in the realm of occurrents are typically either parasitic on the existence of natural units on the continuant side, or they are fiat in nature. Thus we can count lives; we can count football games; we can count chemical reactions performed in experiments or in chemical manufacturing. We cannot count the processes taking place, for instance, in an episode of insect mating behavior.Even where natural units are identifiable, for example cycles in a cyclical process such as the beating of a heart or an organism’s sleep/wake cycle, the processes in question form a sequence with no discontinuities (temporal gaps) of the sort that we find for instance where billiard balls or zebrafish or planets are separated by clear spatial gaps. Lives of organisms are process units, but they too unfold in a continuous series from other, prior processes such as fertilization, and they unfold in turn in continuous series of post-life processes such as post-mortem decay. Clear examples of boundaries of processes are almost always of the fiat sort (midnight, a time of death as declared in an operating theater or on a death certificate, the initiation of a state of war)
IAO_0000602: (iff (Process a) (and (Occurrent a) (exists (b) (properTemporalPartOf b a)) (exists (c t) (and (MaterialEntity c) (specificallyDependsOnAt a c t))))) // axiom label in BFO2 CLIF: [083-003]

Axiom
annotated source: process
annotated property: IAO_0000115
annotated target: p is a process = Def. p is an occurrent that has temporal proper parts and for some time t, p s-depends_on some material entity at t. (axiom label in BFO2 Reference: [083-003])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/083-003

Axiom
annotated source: process
annotated property: IAO_0000602
annotated target: (iff (Process a) (and (Occurrent a) (exists (b) (properTemporalPartOf b a)) (exists (c t) (and (MaterialEntity c) (specificallyDependsOnAt a c t))))) // axiom label in BFO2 CLIF: [083-003]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/083-003

realizable entity
type: Class
subclass of: specifically dependent continuant
BFO_0000179: realizable
BFO_0000180: RealizableEntity
IAO_0000112: the disposition of this piece of metal to conduct electricity.
IAO_0000112: the disposition of your blood to coagulate
IAO_0000112: the function of your reproductive organs
IAO_0000112: the role of being a doctor
IAO_0000112: the role of this boundary to delineate where Utah and Colorado meet
IAO_0000600: To say that b is a realizable entity is to say that b is a specifically dependent continuant that inheres in some independent continuant which is not a spatial region and is of a type instances of which are realized in processes of a correlated type. (axiom label in BFO2 Reference: [058-002])
IAO_0000601: All realizable dependent continuants have independent continuants that are not spatial regions as their bearers. (axiom label in BFO2 Reference: [060-002])
IAO_0000602: (forall (x t) (if (RealizableEntity x) (exists (y) (and (IndependentContinuant y) (not (SpatialRegion y)) (bearerOfAt y x t))))) // axiom label in BFO2 CLIF: [060-002]
IAO_0000602: (forall (x) (if (RealizableEntity x) (and (SpecificallyDependentContinuant x) (exists (y) (and (IndependentContinuant y) (not (SpatialRegion y)) (inheresIn x y)))))) // axiom label in BFO2 CLIF: [058-002]

Axiom
annotated source: realizable entity
annotated property: IAO_0000600
annotated target: To say that b is a realizable entity is to say that b is a specifically dependent continuant that inheres in some independent continuant which is not a spatial region and is of a type instances of which are realized in processes of a correlated type. (axiom label in BFO2 Reference: [058-002])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/058-002

Axiom
annotated source: realizable entity
annotated property: IAO_0000601
annotated target: All realizable dependent continuants have independent continuants that are not spatial regions as their bearers. (axiom label in BFO2 Reference: [060-002])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/060-002

Axiom
annotated source: realizable entity
annotated property: IAO_0000602
annotated target: (forall (x t) (if (RealizableEntity x) (exists (y) (and (IndependentContinuant y) (not (SpatialRegion y)) (bearerOfAt y x t))))) // axiom label in BFO2 CLIF: [060-002]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/060-002

Axiom
annotated source: realizable entity
annotated property: IAO_0000602
annotated target: (forall (x) (if (RealizableEntity x) (and (SpecificallyDependentContinuant x) (exists (y) (and (IndependentContinuant y) (not (SpatialRegion y)) (inheresIn x y)))))) // axiom label in BFO2 CLIF: [058-002]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/058-002

specifically dependent continuant
type: Class
subclass of: continuant
disjoint with: generically dependent continuant
BFO_0000179: sdc
BFO_0000180: SpecificallyDependentContinuant
IAO_0000112: Reciprocal specifically dependent continuants: the function of this key to open this lock and the mutually dependent disposition of this lock: to be opened by this key
IAO_0000112: of one-sided specifically dependent continuants: the mass of this tomato
IAO_0000112: of relational dependent continuants (multiple bearers): John’s love for Mary, the ownership relation between John and this statue, the relation of authority between John and his subordinates.
IAO_0000112: the disposition of this fish to decay
IAO_0000112: the function of this heart: to pump blood
IAO_0000112: the mutual dependence of proton donors and acceptors in chemical reactions [79
IAO_0000112: the mutual dependence of the role predator and the role prey as played by two organisms in a given interaction
IAO_0000112: the pink color of a medium rare piece of grilled filet mignon at its center
IAO_0000112: the role of being a doctor
IAO_0000112: the shape of this hole.
IAO_0000112: the smell of this portion of mozzarella
IAO_0000115: b is a specifically dependent continuant = Def. b is a continuant & there is some independent continuant c which is not a spatial region and which is such that b s-depends_on c at every time t during the course of b’s existence. (axiom label in BFO2 Reference: [050-003])
IAO_0000116: Specifically dependent continuant doesn't have a closure axiom because the subclasses don't necessarily exhaust all possibilites. We're not sure what else will develop here, but for example there are questions such as what are promises, obligation, etc.
IAO_0000602: (iff (SpecificallyDependentContinuant a) (and (Continuant a) (forall (t) (if (existsAt a t) (exists (b) (and (IndependentContinuant b) (not (SpatialRegion b)) (specificallyDependsOnAt a b t))))))) // axiom label in BFO2 CLIF: [050-003]

Axiom
annotated source: specifically dependent continuant
annotated property: IAO_0000115
annotated target: b is a specifically dependent continuant = Def. b is a continuant & there is some independent continuant c which is not a spatial region and which is such that b s-depends_on c at every time t during the course of b’s existence. (axiom label in BFO2 Reference: [050-003])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/050-003

Axiom
annotated source: specifically dependent continuant
annotated property: IAO_0000116
annotated target: Specifically dependent continuant doesn't have a closure axiom because the subclasses don't necessarily exhaust all possibilites. We're not sure what else will develop here, but for example there are questions such as what are promises, obligation, etc.
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/0000005
comment: per discussion with Barry Smith

Axiom
annotated source: specifically dependent continuant
annotated property: IAO_0000602
annotated target: (iff (SpecificallyDependentContinuant a) (and (Continuant a) (forall (t) (if (existsAt a t) (exists (b) (and (IndependentContinuant b) (not (SpatialRegion b)) (specificallyDependsOnAt a b t))))))) // axiom label in BFO2 CLIF: [050-003]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/050-003

role
type: Class
subclass of: realizable entity
BFO_0000179: role
BFO_0000180: Role
IAO_0000112: John’s role of husband to Mary is dependent on Mary’s role of wife to John, and both are dependent on the object aggregate comprising John and Mary as member parts joined together through the relational quality of being married.
IAO_0000112: the priest role
IAO_0000112: the role of a boundary to demarcate two neighboring administrative territories
IAO_0000112: the role of a building in serving as a military target
IAO_0000112: the role of a stone in marking a property boundary
IAO_0000112: the role of subject in a clinical trial
IAO_0000112: the student role
IAO_0000116: BFO 2 Reference: One major family of examples of non-rigid universals involves roles, and ontologies developed for corresponding administrative purposes may consist entirely of representatives of entities of this sort. Thus ‘professor’, defined as follows,b instance_of professor at t =Def. there is some c, c instance_of professor role & c inheres_in b at t.denotes a non-rigid universal and so also do ‘nurse’, ‘student’, ‘colonel’, ‘taxpayer’, and so forth. (These terms are all, in the jargon of philosophy, phase sortals.) By using role terms in definitions, we can create a BFO conformant treatment of such entities drawing on the fact that, while an instance of professor may be simultaneously an instance of trade union member, no instance of the type professor role is also (at any time) an instance of the type trade union member role (any more than any instance of the type color is at any time an instance of the type length).If an ontology of employment positions should be defined in terms of roles following the above pattern, this enables the ontology to do justice to the fact that individuals instantiate the corresponding universals – professor, sergeant, nurse – only during certain phases in their lives.
IAO_0000600: b is a role means: b is a realizable entity & b exists because there is some single bearer that is in some special physical, social, or institutional set of circumstances in which this bearer does not have to be& b is not such that, if it ceases to exist, then the physical make-up of the bearer is thereby changed. (axiom label in BFO2 Reference: [061-001])
IAO_0000602: (forall (x) (if (Role x) (RealizableEntity x))) // axiom label in BFO2 CLIF: [061-001]

Axiom
annotated source: role
annotated property: IAO_0000600
annotated target: b is a role means: b is a realizable entity & b exists because there is some single bearer that is in some special physical, social, or institutional set of circumstances in which this bearer does not have to be& b is not such that, if it ceases to exist, then the physical make-up of the bearer is thereby changed. (axiom label in BFO2 Reference: [061-001])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/061-001

Axiom
annotated source: role
annotated property: IAO_0000602
annotated target: (forall (x) (if (Role x) (RealizableEntity x))) // axiom label in BFO2 CLIF: [061-001]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/061-001

object aggregate
type: Class
subclass of: material entity
BFO_0000179: object-aggregate
BFO_0000180: ObjectAggregate
IAO_0000112: a collection of cells in a blood biobank.
IAO_0000112: a swarm of bees is an aggregate of members who are linked together through natural bonds
IAO_0000112: a symphony orchestra
IAO_0000112: an organization is an aggregate whose member parts have roles of specific types (for example in a jazz band, a chess club, a football team)
IAO_0000112: defined by fiat: the aggregate of members of an organization
IAO_0000112: defined through physical attachment: the aggregate of atoms in a lump of granite
IAO_0000112: defined through physical containment: the aggregate of molecules of carbon dioxide in a sealed container
IAO_0000112: defined via attributive delimitations such as: the patients in this hospital
IAO_0000112: the aggregate of bearings in a constant velocity axle joint
IAO_0000112: the aggregate of blood cells in your body
IAO_0000112: the nitrogen atoms in the atmosphere
IAO_0000112: the restaurants in Palo Alto
IAO_0000112: your collection of Meissen ceramic plates.
IAO_0000116: An entity a is an object aggregate if and only if there is a mutually exhaustive and pairwise disjoint partition of a into objects
IAO_0000116: BFO 2 Reference: object aggregates may gain and lose parts while remaining numerically identical (one and the same individual) over time. This holds both for aggregates whose membership is determined naturally (the aggregate of cells in your body) and aggregates determined by fiat (a baseball team, a congressional committee).
IAO_0000119: ISBN:978-3-938793-98-5pp124-158#Thomas Bittner and Barry Smith, 'A Theory of Granular Partitions', in K. Munn and B. Smith (eds.), Applied Ontology: An Introduction, Frankfurt/Lancaster: ontos, 2008, 125-158.
IAO_0000600: b is an object aggregate means: b is a material entity consisting exactly of a plurality of objects as member_parts at all times at which b exists. (axiom label in BFO2 Reference: [025-004])
IAO_0000602: (forall (x) (if (ObjectAggregate x) (and (MaterialEntity x) (forall (t) (if (existsAt x t) (exists (y z) (and (Object y) (Object z) (memberPartOfAt y x t) (memberPartOfAt z x t) (not (= y z)))))) (not (exists (w t_1) (and (memberPartOfAt w x t_1) (not (Object w)))))))) // axiom label in BFO2 CLIF: [025-004]

Axiom
annotated source: object aggregate
annotated property: IAO_0000116
annotated target: An entity a is an object aggregate if and only if there is a mutually exhaustive and pairwise disjoint partition of a into objects
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/0000011

Axiom
annotated source: object aggregate
annotated property: IAO_0000116
annotated target: An entity a is an object aggregate if and only if there is a mutually exhaustive and pairwise disjoint partition of a into objects
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/0000301

Axiom
annotated source: object aggregate
annotated property: IAO_0000119
annotated target: ISBN:978-3-938793-98-5pp124-158#Thomas Bittner and Barry Smith, 'A Theory of Granular Partitions', in K. Munn and B. Smith (eds.), Applied Ontology: An Introduction, Frankfurt/Lancaster: ontos, 2008, 125-158.
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/0000300

Axiom
annotated source: object aggregate
annotated property: IAO_0000600
annotated target: b is an object aggregate means: b is a material entity consisting exactly of a plurality of objects as member_parts at all times at which b exists. (axiom label in BFO2 Reference: [025-004])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/025-004

Axiom
annotated source: object aggregate
annotated property: IAO_0000602
annotated target: (forall (x) (if (ObjectAggregate x) (and (MaterialEntity x) (forall (t) (if (existsAt x t) (exists (y z) (and (Object y) (Object z) (memberPartOfAt y x t) (memberPartOfAt z x t) (not (= y z)))))) (not (exists (w t_1) (and (memberPartOfAt w x t_1) (not (Object w)))))))) // axiom label in BFO2 CLIF: [025-004]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/025-004

site
type: Class
subclass of: immaterial entity
BFO_0000179: site
BFO_0000180: Site
IAO_0000112: Manhattan Canyon)
IAO_0000112: a hole in the interior of a portion of cheese
IAO_0000112: a rabbit hole
IAO_0000112: an air traffic control region defined in the airspace above an airport
IAO_0000112: the Grand Canyon
IAO_0000112: the Piazza San Marco
IAO_0000112: the cockpit of an aircraft
IAO_0000112: the hold of a ship
IAO_0000112: the interior of a kangaroo pouch
IAO_0000112: the interior of the trunk of your car
IAO_0000112: the interior of your bedroom
IAO_0000112: the interior of your office
IAO_0000112: the interior of your refrigerator
IAO_0000112: the lumen of your gut
IAO_0000112: your left nostril (a fiat part – the opening – of your left nasal cavity)
IAO_0000600: b is a site means: b is a three-dimensional immaterial entity that is (partially or wholly) bounded by a material entity or it is a three-dimensional immaterial part thereof. (axiom label in BFO2 Reference: [034-002])
IAO_0000602: (forall (x) (if (Site x) (ImmaterialEntity x))) // axiom label in BFO2 CLIF: [034-002]

Axiom
annotated source: site
annotated property: IAO_0000600
annotated target: b is a site means: b is a three-dimensional immaterial entity that is (partially or wholly) bounded by a material entity or it is a three-dimensional immaterial part thereof. (axiom label in BFO2 Reference: [034-002])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/034-002

Axiom
annotated source: site
annotated property: IAO_0000602
annotated target: (forall (x) (if (Site x) (ImmaterialEntity x))) // axiom label in BFO2 CLIF: [034-002]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/034-002

generically dependent continuant
type: Class
subclass of: continuant
BFO_0000179: gdc
BFO_0000180: GenericallyDependentContinuant
IAO_0000112: The entries in your database are patterns instantiated as quality instances in your hard drive. The database itself is an aggregate of such patterns. When you create the database you create a particular instance of the generically dependent continuant type database. Each entry in the database is an instance of the generically dependent continuant type IAO: information content entity.
IAO_0000112: the pdf file on your laptop, the pdf file that is a copy thereof on my laptop
IAO_0000112: the sequence of this protein molecule; the sequence that is a copy thereof in that protein molecule.
IAO_0000115: b is a generically dependent continuant = Def. b is a continuant that g-depends_on one or more other entities. (axiom label in BFO2 Reference: [074-001])
IAO_0000602: (iff (GenericallyDependentContinuant a) (and (Continuant a) (exists (b t) (genericallyDependsOnAt a b t)))) // axiom label in BFO2 CLIF: [074-001]

Axiom
annotated source: generically dependent continuant
annotated property: IAO_0000115
annotated target: b is a generically dependent continuant = Def. b is a continuant that g-depends_on one or more other entities. (axiom label in BFO2 Reference: [074-001])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/074-001

Axiom
annotated source: generically dependent continuant
annotated property: IAO_0000602
annotated target: (iff (GenericallyDependentContinuant a) (and (Continuant a) (exists (b t) (genericallyDependsOnAt a b t)))) // axiom label in BFO2 CLIF: [074-001]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/074-001

material entity
type: Class
subclass of: independent continuant
disjoint with: immaterial entity
BFO_0000179: material
BFO_0000180: MaterialEntity
IAO_0000112: a flame
IAO_0000112: a forest fire
IAO_0000112: a human being
IAO_0000112: a hurricane
IAO_0000112: a photon
IAO_0000112: a puff of smoke
IAO_0000112: a sea wave
IAO_0000112: a tornado
IAO_0000112: an aggregate of human beings.
IAO_0000112: an energy wave
IAO_0000112: an epidemic
IAO_0000112: the undetached arm of a human being
IAO_0000116: BFO 2 Reference: Material entities (continuants) can preserve their identity even while gaining and losing material parts. Continuants are contrasted with occurrents, which unfold themselves in successive temporal parts or phases [60
IAO_0000116: BFO 2 Reference: Object, Fiat Object Part and Object Aggregate are not intended to be exhaustive of Material Entity. Users are invited to propose new subcategories of Material Entity.
IAO_0000116: BFO 2 Reference: ‘Matter’ is intended to encompass both mass and energy (we will address the ontological treatment of portions of energy in a later version of BFO). A portion of matter is anything that includes elementary particles among its proper or improper parts: quarks and leptons, including electrons, as the smallest particles thus far discovered; baryons (including protons and neutrons) at a higher level of granularity; atoms and molecules at still higher levels, forming the cells, organs, organisms and other material entities studied by biologists, the portions of rock studied by geologists, the fossils studied by paleontologists, and so on.Material entities are three-dimensional entities (entities extended in three spatial dimensions), as contrasted with the processes in which they participate, which are four-dimensional entities (entities extended also along the dimension of time).According to the FMA, material entities may have immaterial entities as parts – including the entities identified below as sites; for example the interior (or ‘lumen’) of your small intestine is a part of your body. BFO 2.0 embodies a decision to follow the FMA here.
IAO_0000600: A material entity is an independent continuant that has some portion of matter as proper or improper continuant part. (axiom label in BFO2 Reference: [019-002])
IAO_0000601: Every entity which has a material entity as continuant part is a material entity. (axiom label in BFO2 Reference: [020-002])
IAO_0000601: every entity of which a material entity is continuant part is also a material entity. (axiom label in BFO2 Reference: [021-002])
IAO_0000602: (forall (x) (if (MaterialEntity x) (IndependentContinuant x))) // axiom label in BFO2 CLIF: [019-002]
IAO_0000602: (forall (x) (if (and (Entity x) (exists (y t) (and (MaterialEntity y) (continuantPartOfAt x y t)))) (MaterialEntity x))) // axiom label in BFO2 CLIF: [021-002]
IAO_0000602: (forall (x) (if (and (Entity x) (exists (y t) (and (MaterialEntity y) (continuantPartOfAt y x t)))) (MaterialEntity x))) // axiom label in BFO2 CLIF: [020-002]

Axiom
annotated source: material entity
annotated property: IAO_0000600
annotated target: A material entity is an independent continuant that has some portion of matter as proper or improper continuant part. (axiom label in BFO2 Reference: [019-002])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/019-002

Axiom
annotated source: material entity
annotated property: IAO_0000601
annotated target: Every entity which has a material entity as continuant part is a material entity. (axiom label in BFO2 Reference: [020-002])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/020-002

Axiom
annotated source: material entity
annotated property: IAO_0000601
annotated target: every entity of which a material entity is continuant part is also a material entity. (axiom label in BFO2 Reference: [021-002])
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/021-002

Axiom
annotated source: material entity
annotated property: IAO_0000602
annotated target: (forall (x) (if (MaterialEntity x) (IndependentContinuant x))) // axiom label in BFO2 CLIF: [019-002]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/019-002

Axiom
annotated source: material entity
annotated property: IAO_0000602
annotated target: (forall (x) (if (and (Entity x) (exists (y t) (and (MaterialEntity y) (continuantPartOfAt x y t)))) (MaterialEntity x))) // axiom label in BFO2 CLIF: [021-002]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/021-002

Axiom
annotated source: material entity
annotated property: IAO_0000602
annotated target: (forall (x) (if (and (Entity x) (exists (y t) (and (MaterialEntity y) (continuantPartOfAt y x t)))) (MaterialEntity x))) // axiom label in BFO2 CLIF: [020-002]
IAO_0010000: http://purl.obolibrary.org/obo/bfo/axiom/020-002

immaterial entity
type: Class
subclass of: independent continuant
BFO_0000179: immaterial
BFO_0000180: ImmaterialEntity
IAO_0000116: BFO 2 Reference: Immaterial entities are divided into two subgroups:boundaries and sites, which bound, or are demarcated in relation, to material entities, and which can thus change location, shape and size and as their material hosts move or change shape or size (for example: your nasal passage; the hold of a ship; the boundary of Wales (which moves with the rotation of the Earth) [38, 7, 10