About: http://webisa.webdatacommons.org/431121061

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	Such nodes may be used as a back up in the event of a catastrophic failure, such as loss of power, of a compute node and thereby improve the integrity of the database throughout the distributed environment.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com