PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Luckily, there are easy ways to keep your home safe, especially from common hazards like lead, carbon monoxide, and mercury.Lead is a toxic metal that was used for many years in household products.
http://www.w3.org/ns/prov#wasQuotedFrom
  • pbslearningmedia.org