About: http://webisa.webdatacommons.org/199603151

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Some languages, like CommonLisp and Smalltalk, do actually allow types to be mutated on a running system.
http://www.w3.org/ns/prov#wasQuotedFrom	c2.com