About: http://webisa.webdatacommons.org/20456819

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	Hard vulcanized rubber is sometimes sold under the brand names ebonite or vulcanite, and is used to make articles such as clarinet and saxophone mouth pieces, bowling balls and hockey pucks.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org