PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Today, insomnia or insomnia is a very common problem caused because of the outcome of both physical and mental causes.
http://www.w3.org/ns/prov#wasQuotedFrom
  • naturalsleep-aids.com