PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The electronic mailing system of this invention and method for transmitting/receiving mails is not limited to the second embodiment, but may include other variants such as the following one.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com