PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Since it, the cardboard, was found on the site, though no one seemed to have noted exactly where it was collected which seems to be a little sloppy for both the police officers and scientists involved, there was a question about it being related to the sighting.In a letter dated February 19, 1965, Menzel, writing to Hynek, noted, There was also a piece of charred cardboard. ...
http://www.w3.org/ns/prov#wasQuotedFrom
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