About: http://webisa.webdatacommons.org/297405043

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 outer material or covering layer for the shape-changing buttons is generally a flexible material such as a rubber material, silicone or similar materials that are also used for conventional buttons.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com