About: http://webisa.webdatacommons.org/166079269

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 stopper 2015 may be made of a polymer material such as silicone, and preferably of the same material as the electrode.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com