CHEMROF	Cell Cycle Ontology	Source
http://purl.obolibrary.org/obo/SIO_011125	https://w3id.org/chemrof/Molecule	LOOM
http://purl.obolibrary.org/obo/SIO_010043	https://w3id.org/chemrof/Protein	LOOM
http://purl.obolibrary.org/obo/SIO_010004	https://w3id.org/chemrof/ChemicalEntity	LOOM
http://purl.obolibrary.org/obo/MI_1250	https://w3id.org/chemrof/IsomeraseReaction	LOOM