Question: Tokyo International Airport, commonly known as Haneda Airport , is one of the two primary airports that serve the Greater Tokyo Area, and is the primary base of Japan's two major domestic airlines, which one is the largest airline in Japan?

full_context: Document 1: Keikyū Airport Line: The Keikyu Airport Line (京急空港線 , Keikyū Kūkō-sen ) is a 6.5 km commuter line operated in Japan by the private railway operator Keikyu. It connects Keikyu Kamata with Haneda Airport Domestic Terminal (at Tokyo International Airport) in Tokyo, and has Airport Express (エアポート急行), Limited Express (特急, 快特) and Airport Limited Express (エアポート快特) services, virtually all of which continue along the Keikyū Main Line either north to Shinagawa Station in central Tokyo with some trains continuing onto the Toei Asakusa Line, or south to Yokohama Station and onward towards Shinzushi Station.
Document 2: All Nippon Airways: All Nippon Airways Co., Ltd. (全日本空輸株式会社 , Zen Nippon Kūyu Kabushiki gaisha ) , also known as Zennikkū (全日空 ) or ANA, is the largest airline in Japan. Its headquarters are located at Shiodome City Center in the Shiodome area of Minato, Tokyo, Japan. It operates services to both domestic and international destinations and had more than 20,000 employees as of March 2016. In May 2010, ANA's total passenger traffic was up year-on-year by 7.8%, and its international services grew by 22% to 2.07 million passengers in the first five months of 2010. ANA's main international hubs are at Narita International Airport outside Tokyo and Kansai International Airport outside Osaka. Its main domestic hubs are at Tokyo International Airport (Haneda), Osaka International Airport (Itami), Chūbu Centrair International Airport (near Nagoya), and New Chitose Airport (near Sapporo).
Document 3: Haneda Airport: Tokyo International Airport (東京国際空港 , Tōkyō Kokusai Kūkō ) , commonly known as Haneda Airport (羽田空港 , Haneda Kūkō ) or Tokyo Haneda Airport (IATA: HND, ICAO: RJTT) , is one of the two primary airports that serve the Greater Tokyo Area, and is the primary base of Japan's two major domestic airlines, Japan Airlines (Terminal 1) and All Nippon Airways (Terminal 2), as well as Air Do, Skymark Airlines, Solaseed Air, and StarFlyer. It is located in Ōta, Tokyo, 14 km south of Tokyo Station.
Document 4: Haneda Airport Domestic Terminal Station: Haneda Airport Domestic Terminal Station (羽田空港国内線ターミナル駅 , Haneda-kūkō Kokunaisen Tāminaru eki ) is a railway station on the Keikyu Airport Line in Ōta, Tokyo, Japan, operated by the private railway operator Keikyu. It is situated directly beneath Tokyo International Airport ("Haneda Airport").
Document 5: Tokyo Monorail: Tokyo Monorail (東京モノレール , Tōkyō Monorēru ) , officially the Tokyo Monorail Haneda Airport Line (東京モノレール羽田空港線 , Tōkyō Monorēru Haneda Kūkō sen ) , is a monorail system connecting Haneda Airport in Ōta, Tokyo, Japan, to Monorail Hamamatsuchō Station in Minato, Tokyo. The trains operate along an elevated line that follows the coast of Tokyo Bay.
Document 6: Air Japan: Air Japan Co., Ltd. (株式会社エアージャパン , Kabushiki-gaisha Eā Japan ) is a charter airline based on the grounds of Narita International Airport in Narita, Chiba in Japan. It operates scheduled services under the ANA brand. It should not be confused with Air Nippon, another ANA subsidiary, or Japan Airlines (JAL), ANA's competitor. Its main base is Narita Airport. It was announced on 2 April 2010 that Air Japan and ANA & JP Express will merge, with Air Japan being the surviving company. Air Japan uses the All Nippon call sign on all flights except the Seoul Incheon and Narita-Honolulu routes which use the Air Japan call sign.
Document 7: Air Next: Air Next Co., Ltd. (エアーネクスト株式会社 , Eā Nekusuto Kabushiki-gaisha ) was a low-cost airline based on the grounds of Fukuoka Airport in Hakata-ku, Fukuoka, Fukuoka Prefecture, Japan and a wholly owned subsidiary of All Nippon Airways (ANA). It operated domestic services from its main base at Fukuoka Airport. On October 1, 2010, Air Next, Air Central and Air Nippon Network were merged and rebranded as ANA Wings.
Document 8: Skymark Airlines: Skymark Airlines Inc. (スカイマーク株式会社 , Sukaimāku Kabushiki-gaisha ) is a low-cost airline headquartered at Haneda Airport in Ōta, Tokyo, Japan, operating scheduled passenger services within Japan. In addition to its base at Haneda, Skymark is the dominant carrier at Kobe Airport and is the only domestic airline operating at Ibaraki Airport north of Tokyo.
Document 9: Japan Air System: Japan Air System Co., Ltd. (JAS) (日本エアシステム , "Nihon Ea Shisutemu" ) (IATA: JD, ICAO: JAS, Call sign: Air System) was the smallest of the big three Japanese airlines. In contrast to JAL and ANA, its international route network was very small, but its domestic network incorporated many smaller airports that were not served by the two larger airlines. As an independent company, it was last headquartered in the JAS M1 Building at Tokyo International Airport (Haneda Airport) in Ōta, Tokyo. It has since merged with Japan Airlines.
Document 10: Narita International Airport: Narita International Airport (成田国際空港 , Narita Kokusai Kūkō ) (IATA: NRT, ICAO: RJAA) , also known as Tokyo Narita Airport, formerly and originally known as New Tokyo International Airport (新東京国際空港 , Shin Tōkyō Kokusai Kūkō ) , is an international airport serving the Greater Tokyo Area of Japan. It is located approximately 60 km east of central Tokyo in Chiba Prefecture, straddling the border between the city of Narita and the adjacent town of Shibayama.
Document 11: Japan Airlines: Japan Airlines Co., Ltd. (JAL) (日本航空株式会社 , Nihon Kōkū Kabushiki-gaisha , , OTC Pink: JAPSY) , is the flag carrier airline of Japan and the second largest in the country behind All Nippon Airways. It is headquartered in Shinagawa, Tokyo, Japan; and its main hubs are Tokyo's Narita International Airport and Tokyo International Airport (Haneda Airport), as well as Osaka's Kansai International Airport and Osaka International Airport. JAL group companies include Japan Airlines, J-Air, JAL Express, Japan Air Commuter, Japan Transocean Air and Ryukyu Air Commuter for domestic feeder services; and JAL Cargo for cargo and mail services.
Document 12: Soekarno–Hatta International Airport: Soekarno–Hatta International Airport (Indonesian: "Bandar Udara Internasional Soekarno–Hatta" ) (IATA: CGK, ICAO: WIII) , abbreviated SHIA or Soetta, is the primary airport serving the Greater Jakarta area on the island of Java in Indonesia. Named after the first president and vice-president of Indonesia, Soekarno and Mohammad Hatta, the airport is located at Benda, Tangerang, approximately 20 km northwest of central Jakarta. Due to its proximity to the neighbourhood of Cengkareng in West Jakarta, the airport is also known as Cengkareng Airport, with the assigned three-letter IATA designator "CGK". The airport is the busiest and the largest airport in Indonesia, as well as being the busiest in the southern hemisphere. According to air travel intelligence company OAG, the airport ranked as the 7th most connected airport in the world & ranked 1st as 'megahub' airport in Asia-Pacific region as per connectivity index, ahead of Japan's Tokyo Haneda Airport and Australia's Sydney Airport .
Document 13: J-Air: J-Air Co., Ltd. (株式会社ジェイエア , Kabushiki-gaisha Jei Ea ) , is a regional commuter airline with its headquarters in the Terminal Building in Nagoya Airfield and in Toyoyama, Nishikasugai District, Aichi, Japan and its main hub at Nagoya Airfield. J-Air previously had its headquarters in Ōmura, Nagasaki Prefecture. Its operations include scheduled passenger services to 16 destinations across regional Japan, under Japan Airlines' flight numbers. The airline has a fleet 19 aircraft, consisting of Bombardier CRJ-200s and Embraer 170s.
Document 14: Finnair: Finnair (Finnish: "Finnair Oyj" , Swedish: "Finnair Abp" ) is the flag carrier and largest airline of Finland, with its headquarters in Vantaa on the grounds of Helsinki Airport, its main hub. Finnair and its subsidiaries dominate both domestic and international air travel in Finland. Its major shareholder is the government of Finland, which owns 55.8% of the shares. Finnair is a member of the Oneworld airline alliance. In 2015, it transported over 10 million passengers to over 60 European, 13 Asian and 4 North-American destinations. At the end of 2016, the airline employed 4,937 people.
Document 15: Air Central: Air Central Co., Ltd. (エアーセントラル株式会社 , Eā Sentoraru Kabushiki-gaisha ) was an airline based in Tokoname, Aichi Prefecture, Japan. It operated passenger services as All Nippon Airways (ANA) flights from its main base is Chūbu Centrair International Airport near Nagoya. On October 1, 2010, Air Central, Air Next and Air Nippon Network were merged and rebranded as ANA Wings.
ground_truth: All Nippon Airways Co., Ltd.