PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In a 2011 report, WORC claims that ???coal mining causes significant air pollution, mainly from fugitive emissions of particulate matter and gases including methane, sulfur dioxide and nitrogen oxides.???
http://www.w3.org/ns/prov#wasQuotedFrom
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