PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • When using such a tool, for example surgical scissors, or a surgical scalpel, the surgeon normally needs to have at least one assistant who can carry out suctioning at the site where the surgical tool is being used, so as to remove blood and other body fluids which are released by the use of the tool and which would otherwise obscure the surgeon's field of view.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com