hasPart has Category:OntologyElement and is an element of PartOf
Name: hasPart
Type: owl:ObjectProperty
Description: A transitive relation expressing parthood between any entities, e.g. the human body has a brain as part. When specializing this Content OP, take care of restricting the domain and range appropriately, since it could be counterintuitive to use this relation arbitrarily, e.g. between animals and planets. For an intransitive part-of Content OP, see componency.
'Ontology Design Patterns'