PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Aeration is the process of bringing water and air into close contact in order to remove dissolved gases, such as radon, carbon dioxide, and to oxidize dissolved metals such as iron.
http://www.w3.org/ns/prov#wasQuotedFrom
  • radonmitigation.us