Question: Shanghai Tower is a structure that is shorter than which broadcasting tower in Japan?
Context: Winnie Cumulus Broadcasting Tower is a 609.6 metres tall guyed TV mast located at Winnie, Texas, USA.  It is the tallest structure in Texas, equalling the Liberman Broadcasting tower. The Shanghai Tower () is a 632 m , 128-story megatall skyscraper in Lujiazui, Pudong, Shanghai.  As of 2015, it is the world's tallest building, by height to highest usable floor (Level 127, 587.4 m).  It also has the world's highest observation deck within a building or structure (Level 121, 561.25 m), and the world's fastest elevators at a top speed of 20.5 m/s (74 km/h; 46 mph ).  It is the world's second-tallest building by height to architectural top (behind Dubai's Burj Khalifa, 828 m) and the world's third-tallest structure (behind Tokyo Skytree, 634 m). Capitol Broadcasting Tower Broadway is a 533.1 metre high guyed tower for TV transmission near Broadway, North Carolina, USA at .  Capitol Broadcasting Tower was built in 2002-2003 and replaced the Capitol Broadcasting Tower Broadway damaged in a plane crash. Tokyo Skytree (東京スカイツリー , Tōkyō Sukaitsurī ) is a broadcasting, restaurant, and observation tower in Sumida, Tokyo, Japan.  It became the tallest structure in Japan in 2010 and reached its full height of 634.0 m in March 2011, making it the tallest tower in the world, displacing the Canton Tower, and the second tallest structure in the world after the Burj Khalifa (829.8 m/2,722 ft). Seto Digital Tower is a digital broadcasting tower in Seto, Aichi, Japan.  In 2011, the tower replaced the Nagoya TV Tower; the Nagoya TV Tower previously had the role of broadcasting in the Nagoya area. Shanghai Tower is a proposed 50-storey skyscraper, to be built as part of the multibillion-pound Liverpool Waters development in Liverpool, England.  The proposal pays homage to Shanghai in China, which is a sister city of Liverpool.  As of 2017 Shanghai tower was not included in the scheme central docks master plan. The Canton Tower, or Guangzhou Tower (), formally Guangzhou TV Astronomical and Sightseeing Tower (), is a 604 m tall multi-purpose observation tower in the Haizhu District of Guangzhou (historically known as Canton or Kwangchow), Guangdong, China.  The tower was topped out in 2009 and it became operational on 29 September 2010 for the 2010 Asian Games.  The tower briefly held the title of tallest tower in the world, replacing the CN Tower, before being surpassed by the Tokyo Skytree.  It was the tallest structure in China prior to the topping out of Shanghai Tower on 3 August 2013.  It is now the second tallest tower and the fourth-tallest freestanding structure in the world. The CKX-TV Craig broadcasting tower is a 411.5 metre 1,350 feet-high guyed TV mast located in Hayfield, Manitoba, Canada.  It is currently the second-tallest structure in Canada.  The current structure is actually the second version built at the site.  When the original mast was built in 1973, the CKX-TV Craig broadcasting tower matched the height of the Cape Race LORAN-C transmitter as the tallest structures in Canada.  Only one structure built since then within Canada has surpassed its height: the CN Tower in Toronto.  The original mast collapsed in an ice storm in 1983 and was subsequently rebuilt in 1985. Duhamel Broadcasting Tower Angora is a tall guyed mast located at Angora, Nebraska.  Duhamel Broadcasting Tower Angora was completed in 2003 and is 450.5 m high. The Jin Mao Tower (), also known as the Jinmao Building or Jinmao Tower , is an 88-story (93 if counting the floors in the spire) landmark skyscraper in Lujiazui, Pudong, Shanghai, China.  It is 420.5 m tall and is one of the tallest buildings in the world.  It contains a shopping mall, offices and the Grand Hyatt Shanghai hotel, which at the time of completion was the highest hotel in the world.  Along with the Oriental Pearl Tower, the Shanghai World Financial Center and the Shanghai Tower it is part of the Lujiazui skyline seen from the Bund.  It was the tallest building in China from its completion in 1999 until 2007, when it was surpassed by the Shanghai World Financial Center which is located close by.  The Shanghai Tower, a 121-story building located next to these two buildings, surpassed the height of both these buildings in 2015.
Answer: Tokyo Skytree