CHEMROF	Flora Phenotype Ontology	Source
http://purl.org/gc/AromaticBond	http://purl.obolibrary.org/obo/PATO_0002191	LOOM
https://w3id.org/chemrof/HardOrSoftEnum#hard	http://purl.obolibrary.org/obo/PATO_0000386	LOOM
https://w3id.org/chemrof/HardOrSoftEnum#soft	http://purl.obolibrary.org/obo/PATO_0000387	LOOM