Enzyme Structure Function Ontology	The Drug-Drug Interactions Ontology	Source
http://purl.obolibrary.org/obo/CHEBI_23357	http://www.semanticweb.org/shoshana/ontologies/2014/8/untitled-ontology-8#Cofactor	LOOM
http://purl.obolibrary.org/obo/dinto_000130	http://www.semanticweb.org/shoshana/ontologies/2014/8/untitled-ontology-8#Enzyme	LOOM