About: http://webisa.webdatacommons.org/14258302

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	The problem with this solution should be obvious to programmers familiar with Python dictionaries: only immutable types can be used as keys.
http://www.w3.org/ns/prov#wasQuotedFrom	learningpython.com