About: http://webisa.webdatacommons.org/177519504

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	implementations, a trackball, joystick, button wheel, or other pointing device such as a gesture recognition system may be desirable.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com