PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In doctests, we should use coerce_map_from(), since we want to see proper maps there, except for educational purposes such as the test mentioned above.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sagemath.org