PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Digesters treat waste ??? wastewater sludge, plant materials, manure, garbage and other matter ??? in an oxygen-less environment in which microbes transform some or all of it into a liquid biogas such as methane.
http://www.w3.org/ns/prov#wasQuotedFrom
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