About: http://webisa.webdatacommons.org/148917942

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	Slot machines, however, such as conventional slot machines, video poker, video keno and video blackjack machines, constitute the major source of income for casinos.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es