Semanticscience Integrated Ontology	BRENDA Tissue and Enzyme Source Ontology	Source
http://semanticscience.org/resource/SIO_000753	http://purl.obolibrary.org/obo/BTO_0005692	LOOM
http://semanticscience.org/resource/SIO_001335	http://purl.obolibrary.org/obo/BTO_0001156	LOOM