PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In a process of the invention, contaminated water is obtained from a source, such as a river, lake, or well, and is preferably first passed through an organic whirlpool separator to remove particulates larger than about 75 microns in size.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.ca