Systems Biology Ontology	Units of Measurement Ontology	Source
http://biomodels.net/SBO/SBO_0000331	http://purl.obolibrary.org/obo/UO_0000152	LOOM
http://biomodels.net/SBO/SBO_0000541	http://purl.obolibrary.org/obo/UO_0000076	LOOM