PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Acquiring new customers is expensive (five to ten times the cost of retaining an existing one), and the average spend of a repeat customer is a whopping 67 percent more than a new one
http://www.w3.org/ns/prov#wasQuotedFrom
  • seobook.com