Sequence Types and Features Ontology	MHC Restriction Ontology	Source
http://purl.obolibrary.org/obo/SO_0000355	http://purl.obolibrary.org/obo/SO_0000355	SAME_URI
http://purl.obolibrary.org/obo/SO_0000704	http://purl.obolibrary.org/obo/SO_0000704	SAME_URI
http://purl.obolibrary.org/obo/SO_0001024	http://purl.obolibrary.org/obo/SO_0001024	SAME_URI
http://purl.obolibrary.org/obo/SO_0001018	http://purl.obolibrary.org/obo/OBI_1110001	LOOM