About: http://webisa.webdatacommons.org/292937140

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	Without more information such as code examples and server stack etc, I would say maybe replace the character with & #64;
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com