Cell Ontology Potato Ontology Source
http://purl.obolibrary.org/obo/PATO_0001374 http://www.cropontology.org/rdf/CO_330:0000120 LOOM
http://purl.obolibrary.org/obo/PATO_0000165 http://www.cropontology.org/rdf/Time LOOM