NanoParticle Ontology	Xenopus Anatomy Ontology	Source
http://purl.obolibrary.org/obo/XAO_0003012	http://purl.org/obo/owl/GO#GO_0005623	LOOM
http://purl.obolibrary.org/obo/XAO_0004020	http://www.ifomis.org/bfo/1.1/span#Process	LOOM