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Table 3 Some properties of the relations in the OBO Relation Ontology

From: Relations in biomedical ontologies

Relation Transitive Symmetric Reflexive Antisymmetric
is_a + - + +
part_of + - + +
located_in + - + -
contained_in - - - -
adjacent_to - - - -
transformation_of + - - -
derives_ from + - - -
preceded_by + - - -
has_participant - - - -
has_agent - - - -