PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • When an HTTP client (say, a Web browser) talks to an HTTP server (a Web server), it sends requests which can be of several types, the two main being GET and POST. A GET request is what is used for normal links", including images; such requests are meant to retrieve a static piece of data, the URL pointing to that piece of data.
http://www.w3.org/ns/prov#wasQuotedFrom
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