Culture, Race, Ethnicity and Nationality Ontology	The Drug-Drug Interactions Ontology	Source
http://purl.obolibrary.org/obo/IAO_0000313	http://bioontology.org/ontologies/BiomedicalResourceOntology.owl#Patent	LOOM
http://purl.obolibrary.org/obo/IAO_0000013	http://bioontology.org/ontologies/BiomedicalResourceOntology.owl#Journal_Article	LOOM
http://purl.obolibrary.org/obo/IAO_0000088	http://bioontology.org/ontologies/BiomedicalResourceOntology.owl#Report	LOOM
http://purl.obolibrary.org/obo/BFO_0000023	http://purl.obolibrary.org/obo/CHEBI_50906	LOOM