About: http://webisa.webdatacommons.org/142561458

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	Just copy the web address of the page you are trying to visit, exit Firefox, open Firefox again and paste the web address on Firefox web field and try to visit the page.Such an error is a feature.
http://www.w3.org/ns/prov#wasQuotedFrom	webtlk.com