PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Crop residues such as straws and corn stalks are produced in large quantities in both the US and other countries every year, which, due to its organic nature, can be a valuable alternative feedstock for biogas production.
http://www.w3.org/ns/prov#wasQuotedFrom
  • umn.edu