About: http://webisa.webdatacommons.org/11618434

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	yes, I built the plugin in xampp but test it on blushost servers, and other servers before launching it...so it seems this is related to your server configuration (he is my best guess).
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.org