About: http://webisa.webdatacommons.org/123748096

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	U.S. Pat. No. 4,786,892, to Kubo et al., is an example of a pointing device which is alternatively usable as a mouse- or a track ball-type device.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com