NMDC Ontology	Major Histocompatibility Complex Ontology	Source
http://purl.obolibrary.org/obo/CHEBI_15841	http://purl.org/stemnet/MHC#Polypeptide	LOOM
http://purl.obolibrary.org/obo/OBI_0100026	http://purl.org/stemnet/MHC#Organism	LOOM
http://purl.obolibrary.org/obo/PR_000000001	http://purl.org/stemnet/MHC#Protein	LOOM
http://purl.obolibrary.org/obo/CHEBI_36080	http://purl.org/stemnet/MHC#Protein	LOOM