PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Crop residues and other organic material are left on the ground, creating a permanent soil cover that lessens erosion, retains moisture and supplies a steady stream of nutrients.
http://www.w3.org/ns/prov#wasQuotedFrom
  • neb.com