About: http://webisa.webdatacommons.org/123682849

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	Materials other than rubber, such as plastics or other elastomeric materials known to those skilled in the art, are used in alternate embodiments.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com