PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The natural logarithm has the constant e (??? 2.718) as its base; its use is widespread in pure mathematics, especially calculus.
http://www.w3.org/ns/prov#wasQuotedFrom
  • schools-wikipedia.org