PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • There are several ways to reduce radon in your home, but the most common is a fan and vent pipe system, which pulls radon from beneath the house and vents it to the outside.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nrdc.org