PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The researchers focused on the ecological footprint, a measure of how consumption may affect the environment by taking account of food and fiber production, energy use, and human use of land for living space and other purposes.
http://www.w3.org/ns/prov#wasQuotedFrom
  • bio-medicine.org