PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Irrigation is particularly important for agriculture in the Western United States, where irrigated farms accounted for 60 percent of all crop sales in 2008, and 75 percent of U.S. irrigated cropland acres.
http://www.w3.org/ns/prov#wasQuotedFrom
  • usablenet.com