Biological interlocked Process Ontology for metabolism	International Classification of Primary Care - 2 PLUS	Source
http://purl.obolibrary.org/obo/BiPOm#donor	http://purl.bioontology.org/ontology/ICPC2P/A69007	LOOM
http://purl.obolibrary.org/obo/BiPOm#Activity	http://purl.bioontology.org/ontology/STY/T052	LOOM
http://purl.obolibrary.org/obo/BiPOm#Enzyme	http://purl.bioontology.org/ontology/STY/T126	LOOM
http://purl.obolibrary.org/obo/BiPOm#Chemical	http://purl.bioontology.org/ontology/STY/T103	LOOM