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