Orthology Ontology	Genotype Ontology	Source
http://purl.obolibrary.org/obo/SO_0000704	http://purl.obolibrary.org/obo/SO_0000704	SAME_URI
http://purl.org/net/orth#Gene	http://purl.obolibrary.org/obo/SO_0000704	LOOM
http://purl.org/net/orth#Organism	http://purl.obolibrary.org/obo/OBI_0100026	LOOM
http://purl.obolibrary.org/obo/NCIT_C14250	http://purl.obolibrary.org/obo/OBI_0100026	LOOM