About: http://webisa.webdatacommons.org/5025503

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	You are probably still referring to the plugin somewhere in your application, for example by trying to use a Helper or a Model that uses the plugin notation;
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com