Question: Where is the headquarters of the corporation that owns Bally Technologies, Inc.?

Context paragraphs:
Bally Total Fitness: Bally Total Fitness Holding Corporation was an American fitness club chain.  In November 2011, Bally sold 171 Bally locations to competitor L.A. Fitness.  In April 2012, Bally sold an additional 39 facilities to Blast Fitness.  In December 2014, Bally sold most of its remaining gyms (an additional 32) to competitor 24 Hour Fitness.  At its 2007 peak, prior to the filing of the first of two Chapter 11 bankruptcies, Bally operated nearly 440 facilities located in 29 U.S. states, Mexico, Canada, South Korea, China, and the Caribbean under the Bally Total Fitness, Crunch Fitness, Gorilla Sports, Pinnacle Fitness, Bally Sports Clubs, and Sports Clubs of Canada brands.  The company's headquarters are located in Chicago, Illinois.

Bally Records: Bally Records was a small record label located at 203 N. Wabash Ave. in Chicago, Illinois.  Its full name was Bally Recording Corporation and it was a subsidiary of slot machine and pinball maker Bally Manufacturing.  The parent company saw and filled a need to supply records to the coin-operated phonograph (juke box) industry.  The record division was launched in 1955 with much publicity, in such publications as "Billboard Magazine", with Chicago entertainer, Lou Breese named as executive vice president.  It was short lived and the last records were produced in 1957.  As was usual at the time, records were issued in three speeds: 33, 45, and 78 rpm.  Sparton Records of Canada released several Bally sides.  The best known record issued on Bally is "I Dreamed" by Betty Johnson (Bally 1020), which peaked on the "Billboard" Hot 100 at No. 9 early in 1957.

Sente Technologies: Sente Technologies (also known as Bally Sente, Inc.) was an arcade game developer.  Founded as Videa in 1982 by several ex-Atari employees, the company was bought by Nolan Bushnell and made a division of his Pizza Time Theatre company in 1983.  In 1984 the division was acquired by Bally Midway who continued to operate it until closing it down in 1988.  The name Sente, like Atari, is another reference to Bushnell's favorite game, Go and means "having the initiative."

Bally Manufacturing: Bally Manufacturing, later renamed Bally Entertainment, was an American company that began as a pinball and slot machine manufacturer, and later expanded into casinos, video games, health clubs, and theme parks.  It was acquired by Hilton Hotels in 1995.  Its brand name is still used by several businesses previously linked to Bally Manufacturing, most notably Bally Technologies.

SHFL entertainment: SHFL entertainment, Inc. (previously named Shuffle Master) was a manufacturer of shuffling machines, table games, slot machines, and other casino products, based in Paradise, Nevada.  Founded in 1983, it was acquired by Bally Technologies in 2013.  The company designed Deck Mate, one of the primary card shuffling devices used in casinos.

Clearwire: Clearwire Corporation (stylized as clearw˙re) was a telecommunications operator which provided mobile and fixed wireless broadband communications services to retail and wholesale customers in the United States, Belgium and Spain.  Clearwire traces its roots to 1998, when Sierra Technologies, Inc., spun off certain assets to form a new company, Clearwire Technologies Inc.  In October 2003, Craig McCaw purchased Clearwire Technologies, Inc. parent company Clearwire Holdings and moved the company headquarters to Kirkland, Washington.  In 2012, Clearwire moved the company headquarters to Bellevue, Washington.

Bally Technologies: Bally Technologies, Inc. is a manufacturer of slot machines and other gaming technology based in Enterprise, Nevada.  It is owned by Scientific Games Corporation.

Scientific Games Corporation: Scientific Games Corporation is an American company that provides gambling products and services to lottery and gambling organizations worldwide.  The company is headquartered in Las Vegas, Nevada.  Products include electronic gaming machines, table games, iGaming and iLottery products, instant lottery games, lottery gaming systems, terminals and services, internet applications, server-based interactive gambling terminals, and gambling control systems.

Paul Toback: Paul Toback is an Illinois attorney who served as chief executive officer and chairman of the board of Bally Total Fitness Corporation from December, 2002 until August 11, 2006, prior to the company's Chapter 11 bankruptcy filing in 2007.  He received a lump sum payment for more than $3 million, and the vesting of 135,000 shares of restricted stock upon his resignation.  Seven months before his resignation, Toback ceded effective control of the Bally board of directors to John Rogers, chief executive of Ariel Capital Management, who was named as "lead director."  Prior to his resignation, Toback alleged that major Bally shareholder Emanuel Pearlman of Liberation Investments and former Bally CEO Lee Hillman were behind calls for his ouster, which Pearlman and Hillman denied.

Let It Ride (card game): Let It Ride is a casino table game based on poker, where the player wagers on a five-card poker hand formed by their own three cards and two community cards.  It is a product of Bally Technologies, under its Shuffle Master brand.  The game is played at a relaxed pace relative to other casino card games, which has made it attractive to older players and to table game neophytes.  Initially found in many casinos, the popularity of Let It Ride has waned over the past 15 years, because of the large percentage edge the house has on this game.  With the standard pay table and optimal strategy, the house edge is 3.51%.

Supporting paragraphs: Bally Technologies Scientific Games Corporation
Answer: Las Vegas, Nevada