Question: In which casino was this World Series of Poker discipline first offered?
Sentence (from "Omaha hold 'em"): Omaha hold 'em (also known as Omaha holdem or simply Omaha) is a community card poker game similar to Texas hold 'em, where each player is dealt four cards and must make his or her best hand using exactly two of them, plus exactly three of the five community cards.
Relevant evidence: No