About: http://webisa.webdatacommons.org/20479262

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	Ear ventilation tubes have been made out of, e.g., polytetrafluoroethylene (e.g., TEFLON), silicone, nylon, polyethylene and other polymers, stainless steel, titanium, and gold plated steel.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com