PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In a great many initialization functions this is straightforward, because they rely on pointers or other return values that can be used to track the success/failure state of the initialization function; in the relative few that don???t, good practice dictates inclusion of a state variable for this purpose.
http://www.w3.org/ns/prov#wasQuotedFrom
  • regehr.org