PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • During his January State of the Union address, U.S. President Barack Obama told Congress ???climate change is a fact??? and called for the phasing out of an estimated four billion dollars in tax breaks and incentives ??? many dating back a century, when oil exploration was dangerous and far more expensive ??? that U.S. companies enjoy every year.
http://www.w3.org/ns/prov#wasQuotedFrom
  • progress.org