About: http://webisa.webdatacommons.org/330475832

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	Surround sound systems attempt to create a realistic atmosphere so listeners can hear footsteps approach from behind, cars recede into the distance and other sounds that suggest movement within a three-dimensional space Purchase Options:
http://www.w3.org/ns/prov#wasQuotedFrom	dish.com