PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Since the energy used to make fertilizer is a large part of the overall carbon footprint of agriculture (about 40% for a corn crop), this change would be highly significant.
http://www.w3.org/ns/prov#wasQuotedFrom
  • science20.com