About: http://webisa.webdatacommons.org/446007384

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	Of course there is a drawback that you neeed a separate app domain for your plugin, but sometimes this is considered a good practice.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com