PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The preferred form is commercially-available sodium hydroxide, which can be obtained in aqueous solution at a concentration of about 50 wt-% and in a variety of solid forms of varying particle sizes.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com