PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Sunlight breaks down the methane, releasing hydrogen that can bond with oxygen to form water.Greenhouse gases such as carbon dioxide actually help to cool the upper atmosphere, where the clouds form.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newscientist.com