About: http://webisa.webdatacommons.org/175033702

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	Can you be more specific, some column types are not able to be filter because they play a special role... (ie Links to the document or Document set, etc...)
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com