About: http://webisa.webdatacommons.org/312328487

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	Standard interface and signal input devices, such as a keyboard, mouse, light pen and/or touch screen, are now well known and well used, especially in environments that rely upon computer signal processing.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com