PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Everything you manipulate in Ruby is an object, and all methods are invoked in the context of an object. (In our examples here, we will sometimes show the result of evaluating an expression to the right of an arrow (->).
http://www.w3.org/ns/prov#wasQuotedFrom
  • drdobbs.com