About: http://webisa.webdatacommons.org/158329071

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 the dual system is not employed for each unit, however, there is a problem that the above-mentioned function, such as data back-up, cannot be practically realized.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com