PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The first step to staying mentally sharp as you age is to understand the difference between normal forgetfulness that may be due to stress or other factors and serious memory problems.
http://www.w3.org/ns/prov#wasQuotedFrom
  • helpguide.org