PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The amounts of organic materials from municipal solid wastes, sewage sludges and wastes of agro-industrial origins have increased exponentially, and millions of tons of organic matter are landfilled or incinerated and transformed into methane, carbon dioxide, nitrogen oxides, sulphur oxides and other greenhouse gases.
http://www.w3.org/ns/prov#wasQuotedFrom
  • usda.gov