PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Vog is formed when sulfur dioxide emitted from the volcano reacts with sunlight, oxygen, dust particles and water in the air to form tiny droplets known as sulfate aerosols, sulfuric acid and other substances.
http://www.w3.org/ns/prov#wasQuotedFrom
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