PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • With more and more farmers flocking into the cities, the education of their children is a problem that looms ever larger.
http://www.w3.org/ns/prov#wasQuotedFrom
  • china.org.cn