About: http://webisa.webdatacommons.org/55747093

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	Such user-operable elements may be used for zoom operations, configuration of exposure settings, and self-timer operations, for example.Moreover, such user-operable elements may also be realized by means other than physical keys.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com