About: http://webisa.webdatacommons.org/205248234

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	A track ball, joystick, pen tablet, touch pad, and other such additions and extensions may also be mounted on the Armpiece Key Housing and/or Handpiece according to user needs and preferences.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com