part of
is part of
part_of
a core relation that holds between a part and its whole
Everything is part of itself. Any part of any part of a thing is itself part of that thing. Two distinct things cannot be part of each other.
Occurrents are not subject to change and so parthood between occurrents holds for all the times that the part exists. Many continuants are subject to change, so parthood between continuants will only hold at certain times, but this is difficult to specify in OWL. See https://code.google.com/p/obo-relations/wiki/ROAndTime
Parthood requires the part and the whole to have compatible classes: only an occurrent can be part of an occurrent; only a process can be part of a process; only a continuant can be part of a continuant; only an independent continuant can be part of an independent continuant; only an immaterial entity can be part of an immaterial entity; only a specifically dependent continuant can be part of a specifically dependent continuant; only a generically dependent continuant can be part of a generically dependent continuant. (This list is not exhaustive.) A continuant cannot be part of an occurrent: use 'participates in'. An occurrent cannot be part of a continuant: use 'has participant'. A material entity cannot be part of an immaterial entity: use 'has location'. A specifically dependent continuant cannot be part of an independent continuant: use 'inheres in'. An independent continuant cannot be part of a specifically dependent continuant: use 'bearer of'.
this day is part of this year (occurrent parthood)
my brain is part of my body (continuant parthood, two material entities)
my stomach cavity is part of my stomach (continuant parthood, immaterial entity is part of material entity)
has part
has_part
a core relation that holds between a whole and its part
Everything has itself as a part. Any part of any part of a thing is itself part of that thing. Two distinct things cannot have each other as a part.
Parthood requires the part and the whole to have compatible classes: only an occurrent have an occurrent as part; only a process can have a process as part; only a continuant can have a continuant as part; only an independent continuant can have an independent continuant as part; only a specifically dependent continuant can have a specifically dependent continuant as part; only a generically dependent continuant can have a generically dependent continuant as part. (This list is not exhaustive.) A continuant cannot have an occurrent as part: use 'participates in'. An occurrent cannot have a continuant as part: use 'has participant'. An immaterial entity cannot have a material entity as part: use 'location of'. An independent continuant cannot have a specifically dependent continuant as part: use 'bearer of'. A specifically dependent continuant cannot have an independent continuant as part: use 'inheres in'.
this year has part this day (occurrent parthood)
my body has part my brain (continuant parthood, two material entities)
my stomach has part my stomach cavity (continuant parthood, material entity has part immaterial entity)
realized in
is realized by
realized_in
Paraphrase of elucidation: a relation between a realizable entity and a process, where there is some material entity that is bearer of the realizable entity and participates in the process, and the realizable entity comes to be realized in the course of the process
[copied from inverse property 'realizes'] to say that b realizes c at t is to assert that there is some material entity d & b is a process which has participant d at t & c is a disposition or role of which d is bearer_of at t& the type instantiated by b is correlated with the type instantiated by c. (axiom label in BFO2 Reference: [059-003])
this disease is realized in this disease course
this fragility is realized in this shattering
this investigator role is realized in this investigation
realizes
Paraphrase of elucidation: a relation between a process and a realizable entity, where there is some material entity that is bearer of the realizable entity and participates in the process, and the realizable entity comes to be realized in the course of the process
to say that b realizes c at t is to assert that there is some material entity d & b is a process which has participant d at t & c is a disposition or role of which d is bearer_of at t& the type instantiated by b is correlated with the type instantiated by c. (axiom label in BFO2 Reference: [059-003])
this disease course realizes this disease
this shattering realizes this fragility
this investigation realizes this investigator role
occurs in
occurs_in
unfolds in
unfolds_in
Paraphrase of definition: a relation between a process and an independent continuant, in which the process takes place entirely within the independent continuant
b occurs_in c =def b is a process and c is a material entity or immaterial entity& there exists a spatiotemporal region r and b occupies_spatiotemporal_region r.& forall(t) if b exists_at t then c exists_at t & there exist spatial regions s and s’ where & b spatially_projects_onto s at t& c is occupies_spatial_region s’ at t& s is a proper_continuant_part_of s’ at t
contains process
site of
Paraphrase of definition: a relation between an independent continuant and a process, in which the process takes place entirely within the independent continuant
[copied from inverse property 'occurs in'] b occurs_in c =def b is a process and c is a material entity or immaterial entity& there exists a spatiotemporal region r and b occupies_spatiotemporal_region r.& forall(t) if b exists_at t then c exists_at t & there exist spatial regions s and s’ where & b spatially_projects_onto s at t& c is occupies_spatial_region s’ at t& s is a proper_continuant_part_of s’ at t
inheres in
inheres_in
a relation between a specifically dependent continuant (the dependent) and an independent continuant (the bearer), in which the dependent specifically depends on the bearer for its existence
A dependent inheres in its bearer at all times for which the dependent exists.
this red color inheres in this apple
this fragility inheres in this vase
bearer of
bearer_of
is bearer of
a relation between an independent continuant (the bearer) and a specifically dependent continuant (the dependent), in which the dependent specifically depends on the bearer for its existence
A bearer can have many dependents, and its dependents can exist for different periods of time, but none of its dependents can exist when the bearer does not exist.
this apple is bearer of this red color
this vase is bearer of this fragility
participates in
participates_in
a relation between a continuant and a process, in which the continuant is somehow involved in the process
this input material (or this output material) participates in this process
this investigator participates in this investigation
this blood clot participates in this blood coagulation
has participant
has_participant
a relation between a process and a continuant, in which the continuant is somehow involved in the process
Has_participant is a primitive instance-level relation between a process, a continuant, and a time at which the continuant participates in some way in the process. The relation obtains, for example, when this particular process of oxygen exchange across this particular alveolar membrane has_participant this particular sample of hemoglobin at this particular time.
this process has participant this input material (or this output material)
this investigation has participant this investigator
this blood coagulation has participant this blood clot
is concretized as
A journal article is an information artifact that inheres in some number of printed journals. For each copy of the printed journal there is some quality that carries the journal article, such as a pattern of ink. The journal article (a generically dependent continuant) is concretized as the quality (a specifically dependent continuant), and both depend on that copy of the printed journal (an independent continuant).
A relationship between a generically dependent continuant and a specifically dependent continuant, in which the generically dependent continuant depends on some independent continuant in virtue of the fact that the specifically dependent continuant also depends on that same independent continuant. A generically dependent continuant may be concretized as multiple specifically dependent continuants.
An investigator reads a protocol and forms a plan to carry out an assay. The plan is a realizable entity (a specifically dependent continuant) that concretizes the protocol (a generically dependent continuant), and both depend on the investigator (an independent continuant). The plan is then realized by the assay (a process).
concretizes
A journal article is an information artifact that inheres in some number of printed journals. For each copy of the printed journal there is some quality that carries the journal article, such as a pattern of ink. The quality (a specifically dependent continuant) concretizes the journal article (a generically dependent continuant), and both depend on that copy of the printed journal (an independent continuant).
A relationship between a specifically dependent continuant and a generically dependent continuant, in which the generically dependent continuant depends on some independent continuant in virtue of the fact that the specifically dependent continuant also depends on that same independent continuant. Multiple specifically dependent continuants can concretize the same generically dependent continuant.
function of
function_of
is function of
a relation between a function and an independent continuant (the bearer), in which the function specifically depends on the bearer for its existence
A function inheres in its bearer at all times for which the function exists, however the function need not be realized at all the times that the function exists.
this catalysis function is a function of this enzyme
quality of
a relation between a quality and an independent continuant (the bearer), in which the quality specifically depends on the bearer for its existence
is quality of
quality_of
A quality inheres in its bearer at all times for which the quality exists.
this red color is a quality of this apple
role of
is role of
role_of
a relation between a role and an independent continuant (the bearer), in which the role specifically depends on the bearer for its existence
A role inheres in its bearer at all times for which the role exists, however the role need not be realized at all the times that the role exists.
this investigator role is a role of this person
has function
has_function
a relation between an independent continuant (the bearer) and a function, in which the function specifically depends on the bearer for its existence
A bearer can have many functions, and its functions can exist for different periods of time, but none of its functions can exist when the bearer does not exist. A function need not be realized at all the times that the function exists.
this enzyme has function this catalysis function (more colloquially: this enzyme has this catalysis function)
has quality
a relation between an independent continuant (the bearer) and a quality, in which the quality specifically depends on the bearer for its existence
has_quality
A bearer can have many qualities, and its qualities can exist for different periods of time, but none of its qualities can exist when the bearer does not exist.
this apple has quality this red color
has role
has_role
a relation between an independent continuant (the bearer) and a role, in which the role specifically depends on the bearer for its existence
A bearer can have many roles, and its roles can exist for different periods of time, but none of its roles can exist when the bearer does not exist. A role need not be realized at all the times that the role exists.
this person has role this investigator role (more colloquially: this person has this role of investigator)
derives from
derives_from
a relation between two distinct material entities, the new entity and the old entity, in which the new entity begins to exist when the old entity ceases to exist, and the new entity inherits the significant portion of the matter of the old entity
This is a very general relation. More specific relations are preferred when applicable, such as 'directly develops from'.
this cell derives from this parent cell (cell division)
this nucleus derives from this parent nucleus (nuclear division)
derives into
derives_into
a relation between two distinct material entities, the old entity and the new entity, in which the new entity begins to exist when the old entity ceases to exist, and the new entity inherits the significant portion of the matter of the old entity
This is a very general relation. More specific relations are preferred when applicable, such as 'directly develops into'. To avoid making statements about a future that may not come to pass, it is often better to use the backward-looking 'derives from' rather than the forward-looking 'derives into'.
this parent cell derives into this cell (cell division)
this parent nucleus derives into this nucleus (nuclear division)
location of
is location of
location_of
a relation between two independent continuants, the location and the target, in which the target is entirely within the location
Most location relations will only hold at certain times, but this is difficult to specify in OWL. See https://code.google.com/p/obo-relations/wiki/ROAndTime
my head is the location of my brain
this cage is the location of this rat
located in
a relation between two independent continuants, the target and the location, in which the target is entirely within the location
my brain is located in my head
this rat is located in this cage
Location as a relation between instances: The primitive instance-level relation c located_in r at t reflects the fact that each continuant is at any given time associated with exactly one spatial region, namely its exact location. Following we can use this relation to define a further instance-level location relation - not between a continuant and the region which it exactly occupies, but rather between one continuant and another. c is located in c1, in this sense, whenever the spatial region occupied by c is part_of the spatial region occupied by c1. Note that this relation comprehends both the relation of exact location between one continuant and another which obtains when r and r1 are identical (for example, when a portion of fluid exactly fills a cavity), as well as those sorts of inexact location relations which obtain, for example, between brain and head or between ovum and uterus
located_in
2D boundary of
is 2D boundary of
2D_boundary_of
boundary of
is boundary of
a relation between a 2D immaterial entity (the boundary) and a material entity, in which the boundary delimits the material entity
A 2D boundary may have holes and gaps, but it must be a single connected entity, not an aggregate of several disconnected parts.
Although the boundary is two-dimensional, it exists in three-dimensional space and thus has a 3D shape.
the surface of my skin is a 2D boundary of my body
has 2D boundary
has_2D_boundary
has boundary
a relation between a material entity and a 2D immaterial entity (the boundary), in which the boundary delimits the material entity
my body has 2D boundary the surface of my skin
member of
An organism that is a member of a population of organisms
is member of is a mereological relation between a item and a collection.
has member
has member is a mereological relation between a collection and an item.