PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It may be in your head, but psychological stress can cause physical problems such as lower energy levels, chronic pain, digestive problems and illnesses like heart disease and diabetes.
http://www.w3.org/ns/prov#wasQuotedFrom
  • lifescript.com