PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Volcanic smog (vog) is created when sulfur dioxide and other gases released from a volcano react with oxygen, moisture, dust, and sunlight in the atmosphere.
http://www.w3.org/ns/prov#wasQuotedFrom
  • science.gov