PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Reverse osmosis is a high-pressure process, developed over thirty years ago, that forces water through a thin membrane to filter out minerals and contaminates, including salts and other materials.
http://www.w3.org/ns/prov#wasQuotedFrom
  • docstoc.com