RxNORM	MHC Restriction Ontology	Source
http://purl.bioontology.org/ontology/STY/T001	http://purl.obolibrary.org/obo/OBI_0100026	LOOM
http://purl.bioontology.org/ontology/STY/T016	http://purl.obolibrary.org/obo/NCBITaxon_9606	LOOM