About: http://webisa.webdatacommons.org/64143328

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	Did you do anything except import them, an ePub->ePub conversion maybe?
http://www.w3.org/ns/prov#wasQuotedFrom	mobileread.com