About: http://webisa.webdatacommons.org/216538878

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	Where the screen is to be viewed by more than one observer, particularly if the two observers are displaced by any significant distance, the viewing volume must be increased such that both observers may see the image on the screen.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es