Question: How many rooms are in the hotel and casino where EFX resided?
Context: WinStar World Casino and Resort is a hotel and casino located near the Oklahoma–Texas state line, 1 mi north of the Red River, at Exit 1 off Interstate 35 and Winstar Boulevard in Thackerville, Oklahoma.  The casino opened as the WinStar Casino in 2004, and was expanded (with a 395-room hotel tower) and renamed the WinStar World Casino in 2009, with its 519000 sqft of casino floor making it the largest casino in the state of Oklahoma.  In August 2013, WinStar Resorts completed a major expansion project, which added a new 1000-room second hotel tower that was divided into two phases; this also added a new casino that is attached to the tower.  As a result of the completion of this expansion, the casino overtook Foxwoods Resort Casino to become the largest casino in the United States based on gaming floor space.  WinStar has over 7,400 electronic games, 46 table poker rooms, 99 total table games, Racer's off-track betting, High Limit Room, keno, and bingo. Harrah's New Orleans is a casino located in New Orleans, Louisiana, near the foot of Canal Street a block away from the Mississippi River.  It is a 115000 sqft casino with approximately 2,100 slot machines, over 90 table games and a poker room.  There are several places to eat ranging from buffet style to fine dining.  Since its opening in 1999 Harrah's has been renting nearby hotel rooms to accommodate its guests; currently, the newly renovated 202-room Wyndham Riverfront Hotel is providing such accommodations.  In order to avoid leasing rooms, the casino opened its own 27-story hotel tower with 450 rooms across the street from the casino on September 21, 2006, just days ahead of the New Orleans Saints return to the Louisiana Superdome.  It is the only land-based private casino with table games in the state by Louisiana law (there are other casinos in the state with their gambling facilities on floating boats and horse racing racinos with slot machines).  It is referred to in state statute as "the official gaming establishment", see Chp.10, Title 4 of Louisiana Revised Statutes. Viejas Casino and Resort is a hotel casino and outlet center owned by the Viejas Band of Kumeyaay Indians, located in Alpine, California.  The casino has over 2,000 slot machines, up to 86 table games, three restaurants, a deli, bingo, an off-track betting facility, lounge, concert venues and multiple indoor and outdoor meeting spaces.  Opened in March 2013, the original hotel had 128 rooms; an expansion was completed in October 2015 with the opening of an additional hotel tower with 109 deluxe rooms and luxury suites increasing hotel accommodations to a total of 237 rooms and suites. Hilbert's paradox of the Grand Hotel, or simply Hilbert's Hotel, is a thought experiment which illustrates a counterintuitive property of infinite sets.  It is demonstrated that a fully occupied hotel with infinitely many rooms may still accommodate additional guests, even infinitely many of them, and that this process may be repeated infinitely often.  The idea was introduced by David Hilbert in a 1924 lecture "Über das Unendliche" reprinted in and was popularized through George Gamow's 1947 book "One Two Three... Infinity". Dave Scherer, better known by his stage name Agape, is an American rapper and musician.  He has been touring full-time since 2000, performing in the United States and in six other countries.  He has recorded six CDs, including "Many Rooms" with producer Ant (Atmosphere, Brother Ali).  On his recent CD "Rise Up" he worked with Chris Brown's producer Ra Charm as well as Grammy-award winning singer Billy Steele (Sounds of Blackness, The Steeles).  He has performed in front of Archbishop Desmond Tutu, Toby Mac, David Crowder, Tony Campolo, and gospel singer Kirk Franklin.  In 2001, he co-founded "JUMP" (Joint Urban Ministries in Praise), a ministry dedicated to helping urban youth unleash their leadership skills through the arts.  In 2009, he received the Tom Hunstad Award for excellence in youth ministry and his contribution to the lives of young people.  He has also inspired many of the youth with his touching songs. The megaron ( ; Ancient Greek: μέγαρον ), plural "megara" , was the great hall in ancient Greek palace complexes.  It was a rectangular hall, fronted by an open, two-columned porch, and a more or less central, open hearth vented though an oculus in the roof above it and surrounded by four columns.  It is believed that the ruler of the area, called a "wanax", had his throne placed in room containing the hearth.  Because of this, the main room is sometimes referred to as the "throne room".  It was particularly Aegean, due to the open porch which was usually supported by columns.  The entrance was the feature that helps to distinguish the megaron, due to its position, which was along the shorter wall so that the depth was larger than the width.  There were often many rooms around the central Megaron, such as archive rooms, offices, oil-press rooms, workshops, potteries, shrines, corridors, armories, and storerooms for such goods as wine, oil and wheat. Coronado cave ( ) is located in Cochise County in southern Arizona near the Mexican border.  Walking in the cave is rather easy and the temperature is consistent.  Some visitors say the cave consists of many rooms while others claim it is quite small.  Some rooms require you the crawl in order to enter.  The cave has both stalactites and stalagmites.  The cave has been measured to be approximately 600 feet long, 70 feet wide and 20 feet tall with several passages and crawl ways. EFX was a Las Vegas Strip production show residing at the MGM Grand Hotel & Casino which opened on March 23, 1995 and closed January 1, 2003.  When it premiered, it was the most expensive and largest scaled theater installation in the world.  A significant entertainment landmark of the strip for nearly eight years, it was known for changing its headline star every two years.  Performers in the lead role were Michael Crawford, David Cassidy, Tommy Tune, and Rick Springfield. The Stanford Court San Francisco is a full service four star independent hotel located at 905 California Street on Nob Hill in San Francisco, California.  The hotel sits at the intersection of California & Powell St, where the city's famed cable car lines also intersect.  The 393 room hotel has eight floors, the lobby has iMacs & iPads available for guest use, the rooms include air conditioning, cable TV, and telephone.  Many rooms offer city skyline or bay views.  With a location in the Nob Hill neighborhood, Stanford Court has been a hotel destination since 1972. The MGM Grand Las Vegas (formerly Marina and MGM-Marina) is a hotel and casino located on the Las Vegas Strip in Paradise, Nevada.  The MGM Grand is the largest single hotel in the United States with 5,124 rooms.  It is also the third-largest hotel complex in the world by number of rooms and second-largest hotel resort complex in the United States behind the combined The Venetian and The Palazzo.  When it opened in 1993, the MGM Grand was the largest hotel complex in the world.
Answer: 5,124