About: http://webisa.webdatacommons.org/54708543

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 plugin is a filter for the_content, he is why your solution did work.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com