PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • s the existence of radon gas, formaldehyde gas, airborne asbestos fibers, toxic chemicals, underground storage tanks, lead, MOLD or other pollutants in the soil, air or water???.
http://www.w3.org/ns/prov#wasQuotedFrom
  • realtor.org