Process and Observation Ontology Woody Plant Ontology Source
http://opendata.inra.fr/PO2/method http://www.cropontology.org/rdf/Method LOOM
http://opendata.inra.fr/PO2/scale http://www.cropontology.org/rdf/Scale LOOM
http://www.w3.org/2006/time#Year http://www.cropontology.org/rdf/UO:0000036 LOOM
http://purl.obolibrary.org/obo/BFO_0000019 http://www.cropontology.org/rdf/CO_357:Quality LOOM