PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Since carbon dioxide is a greenhouse gas (it traps heat at the Earth???s surface), the Earth would be a much warmer place without phytoplankton.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nasa.gov