PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • All mills produce some sludge, and deinking mills produce more than virgin mills because deinking leaves a residue mixture of inks, used coatings and fillers, tiny fibers too small to recycle, and contaminants such as staples, glass, plastics and non-fiber materials.
http://www.w3.org/ns/prov#wasQuotedFrom
  • papercalculator.org