PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • If I may add a remark, the strong reciprocity part is much weaker in the US as compared to other cultures.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nakedcapitalism.com