Drug Interaction Knowledge Base Ontology The Ecosystem Ontology Source
http://purl.obolibrary.org/obo/BFO_0000001 http://www.biopax.org/release/biopax-level3.owl#Entity LOOM
http://ecoinformatics.org/oboe/oboe.1.2/oboe-core.owl#Entity http://www.biopax.org/release/biopax-level3.owl#Entity LOOM