About: http://webisa.webdatacommons.org/12281521

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	In an alternative preferred embodiment, however, deletion of a level other than the uppermost in a stack would be allowed, provided the user understands the possible data inconsistency problems this might create.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com