About: http://webisa.webdatacommons.org/406799284

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 various joysticks, buttons, and other control devices on electric wheelchairs are already designed to be ergonomic for their users, so it was only natural to use them for interacting with computers and smartphones.
http://www.w3.org/ns/prov#wasQuotedFrom	msdn.com