About: http://webisa.webdatacommons.org/211638573

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	Thus, there is a problem that mechanical operation sound level of the contact-separating operation becomes high.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au