PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Teeth whitening or bleaching can be done by a dentist, or with an over-the-counter kit available at many drugstores, but for less-serious cases of yellow or discolored teeth, there are a few tricks anyone can try at home.Food and drinks such as coffee, red wine and blueberries can cause teeth to stain.
http://www.w3.org/ns/prov#wasQuotedFrom
  • dentalplans.com