PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Many of the required technologies exist already, but overcoming problems such as electrical interference, programming and power supplies will not be trivial. ???There are a few fundamental problems that have to be solved, but they are solvable,??? he says.
http://www.w3.org/ns/prov#wasQuotedFrom
  • economist.com