Pathway Terminology System	The Drug-Drug Interactions Ontology	Source
http://www.w3.org/2002/07/owl#Thing	http://www.w3.org/2002/07/owl#Thing	SAME_URI
http://purl.obolibrary.org/obo/IEV_0001886	http://bioontology.org/ontologies/BiomedicalResourceOntology.owl#Molecular_Interaction	LOOM
http://purl.obolibrary.org/obo/IEV_0000182	http://bioontology.org/ontologies/BiomedicalResourceOntology.owl#Gene_Expression	LOOM