Question: In what stock exchange is the company which runs an online poker website in 14 different languages listed?

Context paragraphs:
Learn from the Pros: Learn from the Pros was a television program sponsored by the online poker website Full Tilt Poker, which aired on Fox Sports Net a number of times during each week.  It was hosted by Chris Rose.

Nigerian Stock Exchange: The Nigerian Stock Exchange (NSE) was established in 1960 as the Lagos Stock Exchange.  In 1977, its name was changed from the Lagos Stock Exchange to the Nigerian Stock Exchange.  As at March 7, 2017, it has 176 listed companies with a total market capitalization of about N8.5 trillion.  All listings are included in the Nigerian Stock Exchange All Shares index.  In terms of market capitalization, the Nigerian Stock Exchange is the third largest stock exchange in Africa.

GVC Holdings: GVC Holdings PLC is a gambling and online gambling operator in both business-to-consumer (B2C) and business-to-business (B2B) markets.  GVC has four business segments with a number of brands including sports labels (bwin, Sportingbet, gamebookers); games labels (partypoker, partycasino, Foxy Bingo, Foxy Casino, Gioco Digitale, CasinoClub); B2B and non-core assets.  The company is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.

Partypoker: partypoker (formerly stylized PartyPoker) is an online poker card room.  Launched in 2001 by PartyGaming, the site has had up to 80,000 players logged-in and was the largest online card room until 2006.  In 2011 PartyGaming merged with bwin to form Bwin.Party Digital Entertainment.  As of 2017, it remains among the largest online poker card rooms.  The site is endorsed by Mike Sexton, the host of the World Poker Tour television show.  The domain "partypoker.com" attracted at least 3.6 million visitors annually by 2008 according to a Compete.com study.  In 2016, after a protracted bidding process between 888 Holdings and GVC Holdings, Bwin.Party Digital Entertainment accepted GVC Holdings' bid for £1.1 billion.  Today, the site is run by GVC Holdings and is available in 14 different languages.  In addition to partypoker.com, partypoker also offers dedicated networks for French and Italian based players via partypoker.fr and partypoker.it, respectively.  GVC Holdings also acquired Partycasino during the 2011 merger of Party Gaming.

Nasdaq, Inc.: Nasdaq, Inc. is an American multinational financial services corporation that owns and operates (and is listed on) the NASDAQ (formerly National Association of Securities Dealers Automated Quotations) stock market and eight European stock exchanges, namely Armenian Stock Exchange, Copenhagen Stock Exchange, Helsinki Stock Exchange, Iceland Stock Exchange, Riga Stock Exchange, Stockholm Stock Exchange, Tallinn Stock Exchange, and NASDAQ OMX Vilnius.  It is headquartered in New York City, and its president and chief executive officer is Adena Friedman.

San Francisco Stock and Bond Exchange: The San Francisco Stock and Bond Exchange was a regional stock exchange based in San Francisco, California, United States.  Founded in 1882, in 1928 the exchange purchased and began using the name San Francisco Stock Exchange, while the old San Francisco Stock Exchange was renamed the San Francisco Mining Exchange.  The San Francisco Curb Exchange was absorbed by the San Francisco Stock Exchange in 1938.  In 1956 the San Francisco Stock Exchange merged with the Los Angeles Oil Exchange to create the Pacific Coast Stock Exchange.

BSE DCI: The Botswana Stock Exchange Domestic Company Index or BSE DCI, and the Botswana Stock Exchange Foreign Company Index or BSE FCI are the principal stock indices of the Botswana Stock Exchange.  Each is calculated from the weighted averages of the values of their category of stock.  A third index value, the All Company Index, is derived from a weighted average of the two indices.  On the Botswana Stock Exchange, a company that is designated as a "foreign company" is a company that is "dual-listed", meaning that it is also listed on another stock exchange.

Full Tilt Poker Championship at Red Rock: Full Tilt Poker Championship at Red Rock (also FullTiltPoker.Net Championship at Red Rock) was a seven-week televised shootout poker tournament played at the Red Rock Resort Spa and Casino in Summerlin near Las Vegas, Nevada.  The tournament was sponsored by online poker website Full Tilt Poker and aired by Fox Sports Net.  In each of the first six episodes, six professional poker player affiliated with Full Tilt Poker played a single-table freezeout tournament.  The winner of each freezeout won US$25,000 and advanced to the seven-handed final table.  The seventh seat at the final table was filled by Stefan Rehn, an Internet qualifier.  Tournaments featured a speed poker format, with players having 30 seconds to act on their hands with one 60-second time extension per match.

Philadelphia Stock Exchange: Philadelphia Stock Exchange (PHLX), now known as NASDAQ OMX PHLX, is the oldest stock exchange in the United States.  It is now owned by The NASDAQ OMX Group.  Founded in 1790, the exchange was originally named the Board of Brokers of Philadelphia, also referred to as the Philadelphia Board of Brokers.  In 1875, the Board of Brokers changed its name to the Philadelphia Stock Exchange.  The exchange merged with the Baltimore Stock Exchange in 1949 and was named the Philadelphia-Baltimore Stock Exchange.  It merged with the Washington Stock Exchange in 1954, becoming known as the Philadelphia-Baltimore-Washington Stock Exchange (often abbreviated as PBW).  In 1969, the exchange acquired the Pittsburgh Stock Exchange.  In 2007, PHLX was purchased by NASDAQ for $652 million.

Karachi Stock Exchange: The Karachi Stock Exchange Limited (KSE), was a stock exchange located at the Stock Exchange Building (SEB) on Stock Exchange Road, in the heart of Karachi's Business District, I. I. Chundrigar Road, Karachi, Sindh Province of Pakistan.  It is now incorporated in the Pakistan Stock Exchange along with the other two bourses of Pakistan, the Lahore Stock Exchange and the Islamabad Stock Exchange It is Pakistan's largest and one of the oldest stock exchange in South Asia by market capitalization, with many Pakistani consortium as well as overseas enterprises listings.

Supporting paragraphs: Partypoker GVC Holdings
Answer: London Stock Exchange