PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • (3) Disaster means occurrence or imminent threat of widespread or severe damage, injury, or loss of life or property resulting from any natural or manmade causes, such as fire, flood, earthquake, hurricane, tornado, high water, landslide, mudslide, windstorm, wave action, epidemic, air contamination, drought, explosion, water contamination, chemical accident, war or civil disturbance.
http://www.w3.org/ns/prov#wasQuotedFrom
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