About: http://webisa.webdatacommons.org/217617545

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	As shown in FIG. 2, the movable wall 4, made of flexible elastic material such as rubber or synthetic resin material, is generally in the form of a cylinder.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com