About: http://webisa.webdatacommons.org/234281581

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	To test whether you are code suffers the same problem, try using a test image he is a GIF or other format.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com