About: http://webisa.webdatacommons.org/150537361

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	If my library is in c:\calibre-ebooks what command line can I use to remove all versions except epub.
http://www.w3.org/ns/prov#wasQuotedFrom	mobileread.com