About: http://webisa.webdatacommons.org/9301992

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	An arm 520 for supporting an elastic stopper 518 made of a material such as neoprene rubber is mounted on the lower end of the vertical column 18.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com