PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Because of the materials used to make electronics such as lead, mercury and brominated flame retardants, it is important to keep as much of the estimated 2.5 million-plus tons of e-waste out of the waste stream.
http://www.w3.org/ns/prov#wasQuotedFrom
  • earth911.com