PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Head and neck cancer can be caused by many things including HPV virus, smoking, alcohol, drug abuse, genes, environment and stress.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newsmax.com