About: http://webisa.webdatacommons.org/309524849

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	The inner cup 56 is preferably composed of a material having a low frictional resistance and a high lubricating characteristic, and may include such materials as silicone, polyethylene, and polyfluroethylene.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com