About: http://webisa.webdatacommons.org/88582887

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	Maybe it is just because this is an old issue, but I found that the easiest solution is already there in the plugin, you just need to use the proper functions to access it.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com