CHEBI Integrated Role Ontology	Exposure Ontology	Source
http://purl.obolibrary.org/obo/ExO_0000014	http://purl.obolibrary.org/obo/ENVO_01000629	LOOM
http://purl.obolibrary.org/obo/ExO_0000024	http://purl.obolibrary.org/obo/GO_0008150	LOOM
http://purl.obolibrary.org/obo/ExO_0000046	http://purl.obolibrary.org/obo/GO_0005623	LOOM