PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, mathematical communication over the Internet with students using text, for example via e-mail, can be a slow and frustrating process.
http://www.w3.org/ns/prov#wasQuotedFrom
  • maa.org