PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The first thing I look for in simplifying (or solving) a rational expression or equation is an opportunity to factor common terms.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wyzant.com