PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, it is very common ignore this distance and call the equation itself a formula, particularly if one of the sides is a single variable, and particularly in elementary classes.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikipedia.org