METPO	Chemical Process	Source
http://sweet.jpl.nasa.gov/2.3/propChemical.owl#Salinity	https://w3id.org/metpo/0000002	LOOM
http://sweet.jpl.nasa.gov/2.3/propChemical.owl#Acidity	http://purl.obolibrary.org/obo/PATO_0001842	LOOM
http://sweet.jpl.nasa.gov/2.3/propChemical.owl#Salinity	http://purl.obolibrary.org/obo/PATO_0085001	LOOM