PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ???One problem with codigestion is that nutrients, particularly nitrogen and phosphorus, can be released back to the treatment plant,??? explains MacFarlane. ???Managing those nutrient levels is extremely important.
http://www.w3.org/ns/prov#wasQuotedFrom
  • biocycle.net