Class: openControlledVocabulary

comment "Definition: Used to import terms from external controlled vocabularies (CVs) into the ontology. To support consistency and compatibility, open, freely available CVs should be used whenever possible, such as the Gene Ontology (GO) or other open biological CVs listed on the OBO website (http://obo.sourceforge.net/). Comment: The ID property in unification xrefs to GO and other OBO ontologies should include the ontology name in the ID property (e.g. ID="GO:0005634" instead of ID="0005634")." (string)

Class: openControlledVocabulary
XREF Domain (confidence or dataSource or entity or evidence or openControlledVocabulary or sequenceFeature)
CELLTYPE Range openControlledVocabulary
CELLULAR-LOCATION Range openControlledVocabulary
EVIDENCE-CODE Range openControlledVocabulary
EXPERIMENTAL-FORM-TYPE Range openControlledVocabulary
FEATURE-TYPE Range openControlledVocabulary
INTERACTION-TYPE Range openControlledVocabulary
TISSUE Range openControlledVocabulary
TERM Domain openControlledVocabulary

http://www.biopax.org/release/biopax-level2.owl#openControlledVocabulary