About: http://webisa.webdatacommons.org/126879906

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 clean up unused files, such as temporary files and so on, computer users can just do it manually.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com