PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Roughly 60% of the world???s sulfuric acid production is used for fertilizers, especially superphosphates, ammonium phosphate, and ammonium sulfates.
http://www.w3.org/ns/prov#wasQuotedFrom
  • bellchem.com