part_of

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.

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'.

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 http://purl.obolibrary.org/obo/ro/docs/temporal-semantics/

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

is part of

my stomach cavity is part of my stomach (continuant parthood, immaterial entity is part of material entity)

my brain is part of my body (continuant parthood, two material entities)

this day is part of this year (occurrent parthood)

uberon

xenopus_anatomy

worm_development

worm_anatomy

human_stages_ontology

quality

external

protein

zebrafish_anatomical_ontology

relationship

spatial

BrendaTissueOBO

fission_yeast_phenotype

part_of

http://purl.obolibrary.org/obo/BFO_0000019

http://purl.obolibrary.org/obo/BFO_0000004

http://purl.obolibrary.org/obo/BFO_0000017

http://purl.obolibrary.org/obo/BFO_0000002

http://purl.obolibrary.org/obo/BFO_0000003

http://purl.obolibrary.org/obo/BFO_0000020

http://purl.obolibrary.org/obo/BFO_0000031

http://www.obofoundry.org/ro/#OBO_REL:part_of

https://wiki.geneontology.org/Part_of

http://ontologydesignpatterns.org/wiki/Submissions:PartOf

http://ontologydesignpatterns.org/wiki/Community:Parts_and_Collections

part_of

http://purl.obolibrary.org/obo/RO_0001901

Used in FYPO to identify phenotypes that are always observed in the context of another, usually larger-scale, phenotype.