Minimal Standard Terminology of Digestive Endoscopy	PGxO	Source
http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#Entity	http://purl.bioontology.org/ontology/STY/T071	LOOM
http://www.w3.org/ns/prov#Entity	http://purl.bioontology.org/ontology/STY/T071	LOOM