About: http://webisa.webdatacommons.org/446958847

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	However, in this case, there is a problem in that it is required to provide two opening/closing mechanisms 34A and 34B which have a complicated structure and which are relatively expensive, so that the costs are high.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com