About: http://webisa.webdatacommons.org/313351708

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	Therefore, there is a defect that a large-scale optical switch network becomes to be needed and that it is difficult to realize a small-sized node and to lower a cost of the node.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com