About: http://webisa.webdatacommons.org/101885552

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	oxygen, nitrogen, halogen and phosphorous, particularly carbon, hydrogen, oxygen, and nitrogen and where salts are involved, the appropriate metal counterion or ammonium counterion.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com