About: http://webisa.webdatacommons.org/42449023

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	User interaction with the abstraction stack is principally handled by a pointer (not shown in FIG. 5) that is manipulated by one or more user interface devices such as a mouse, a trackball, a keyboard, a touch pad, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk