PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Impervious surfaces such as roofs, streets and driveways do not allow soil to absorb rainwater.
http://www.w3.org/ns/prov#wasQuotedFrom
  • howstuffworks.com