PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Biomass is considered a renewable energy source because it is made from organic materials, such as trees, crops and even garbage.Biomass gasification works just like coal gasification: A feedstock enters a gasifier, which cooks the carbon-containing material in a low-oxygen environment to produce syngas.
http://www.w3.org/ns/prov#wasQuotedFrom
  • howstuffworks.com