Plant Diversity Ontology	Taxonomic Rank Vocabulary	Source
http://purl.obolibrary.org/obo/TAXRANK_0000001	http://rs.tdwg.org/dwc/terms/Phylum	LOOM
http://purl.obolibrary.org/obo/TAXRANK_0000002	http://rs.tdwg.org/dwc/terms/Class	LOOM
http://purl.obolibrary.org/obo/TAXRANK_0000006	http://www.stkos-ontology/domain/plantbiodiversity#Species	LOOM
http://purl.obolibrary.org/obo/TAXRANK_0000004	http://rs.tdwg.org/dwc/terms/Family	LOOM
http://purl.obolibrary.org/obo/TAXRANK_0000003	http://rs.tdwg.org/dwc/terms/Order	LOOM
http://purl.obolibrary.org/obo/TAXRANK_0000005	http://rs.tdwg.org/dwc/terms/Genus	LOOM