PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Some renewable energy sources such as tidal and wave power require regular inspection and maintenance to ensure the equipment is generating electricity at an acceptable efficiency.
http://www.w3.org/ns/prov#wasQuotedFrom
  • harsait.com