Assertion: mouse | /r/CapableOf | free the user
Facets:
value: to a large extent
type: OTHER
Source sentences:
text: Invented by Douglas Engelbart of Stanford Research Center in 1963, and pioneered by Xerox in the 1970s, the mouse is one of the great breakthroughs in computer ergonomics because it frees the user to a large extent from using the keyboard.