Plant Phenology Ontology	PGxO	Source
http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#Entity	http://purl.obolibrary.org/obo/BFO_0000001	LOOM
http://www.w3.org/ns/prov#Entity	http://purl.obolibrary.org/obo/BFO_0000001	LOOM
http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#Quality	http://purl.obolibrary.org/obo/PATO_0000001	LOOM
http://www.ontologydesignpatterns.org/ont/dul/DUL.owl#Quality	http://purl.obolibrary.org/obo/BFO_0000019	LOOM