PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • You may have heard of the term ???social media ROI calculator.??? It refers to a method of figuring out whether you???re getting an adequate return on investment for your organization???s investment in Facebook, blogging, Twitter or other social media.
http://www.w3.org/ns/prov#wasQuotedFrom
  • socialbrite.org