PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Tobacco use is the most important risk factor for head and neck cancers (including cancers of the larynx and hypopharynx).
http://www.w3.org/ns/prov#wasQuotedFrom
  • cancer.org