PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • research,development time, materials, and other factors such as branding, cost of manufacturing and profits also cause the price of the earphone to be as it is
http://www.w3.org/ns/prov#wasQuotedFrom
  • head-fi.org