About: http://webisa.webdatacommons.org/219864546

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	As shown, the user may simply use a mouse, keyboard or other input device to select positive (+) or negative (???) values for any of the depicted zones.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es