METPO	Cell Line Ontology	Source
http://purl.obolibrary.org/obo/PATO_0000117	https://w3id.org/metpo/0001006	LOOM
http://purl.obolibrary.org/obo/CHEBI_36080	http://purl.obolibrary.org/obo/PR_000000001	LOOM
http://purl.obolibrary.org/obo/BFO_0000019	http://purl.obolibrary.org/obo/PATO_0000001	LOOM
http://purl.obolibrary.org/obo/CHEBI_50906	http://purl.obolibrary.org/obo/BFO_0000023	LOOM