The Prescription of Drugs Ontology	Material Natural Resource	Source
http://sweet.jpl.nasa.gov/2.3/matrNaturalResource.owl#FossilFuel	http://purl.obolibrary.org/obo/CHEBI_35230	LOOM
http://sweet.jpl.nasa.gov/2.3/realmHydroBody.owl#BodyOfWater	http://purl.obolibrary.org/obo/GEO_000000373	LOOM