About: http://webisa.webdatacommons.org/120235186

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	Using snapshot function in Vista and onwards OS, incremental backup can be done.Backup is a system function; we should not depend on apps to implement things like that.
http://www.w3.org/ns/prov#wasQuotedFrom	arstechnica.com