PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • When a named optional parameter is of a boolean type, that is a toggle of yes/no, true/false, then, often, instead of taking a boolean value, their sole existence or non-existence define their value. (this is a confusion/infusion of named parameter and optional parameter)
http://www.w3.org/ns/prov#wasQuotedFrom
  • xahlee.info