PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Acupressure mats and pillows help relieve pent-up stress and tension, aches and pains, or ailments such as insomnia or constipation
http://www.w3.org/ns/prov#wasQuotedFrom
  • groupon.com