PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A rotorcraft is a flying machine that uses lift generated by rotor blades that revolve around a mast; helicopters are the most common type of rotorcraft.??? About 208 million acres of U.S. cropland are treated with crop protection products.
http://www.w3.org/ns/prov#wasQuotedFrom
  • agweek.com