PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Instead, chemtrails, typically found to contain heavy metals such as barium and aluminum, spread out and hang in the air for hours before settling as a murky haze on the horizon.
http://www.w3.org/ns/prov#wasQuotedFrom
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