PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • How to cost-effectively recover nutrients, such as nitrogen and phosphorous, in a stable form that could be exported is a question being explored at Rainier Biogas in conjunction with Washington State University, he adds.
http://www.w3.org/ns/prov#wasQuotedFrom
  • biocycle.net