PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Valerian is useful for sleeping difficulties including poor sleep quality, night awakenings, physical stress or night-time pain.
http://www.w3.org/ns/prov#wasQuotedFrom
  • tesco.com