Question: McKayla Maroney was part of what team during the 2012 Summer Olympics in London?

Context paragraphs:
Andro Bušlje: Andro Bušlje (born 4 January 1986) is a Croatian water polo player who competed in the 2008 Summer Olympics and 2012 Summer Olympics.  At the 2012 Summer Olympics he was part of the Croatian team that won the gold medal.  He is right handed, plays center defender, and is currently on Olympiacos.  His nickname is Buki.  He is a student learning English.  Bušlje is 200 cm / 6'7", and weighs 115 kg / 254 lbs.  He started playing water polo at age 12, and he made his national team debut in 2005.  He is known as a dominant player, who usually "shuts-down" the opposing teams center position.

Trinidad and Tobago at the 2012 Summer Olympics: Trinidad and Tobago competed at the 2012 Summer Olympics in London, United Kingdom from 27 July to 12 August 2012.  This was Trinidad and Tobago's most successful Summer Olympics.  It was the nation's largest ever delegation sent to the Olympics, with a total of 30 athletes, 21 men and 9 women, in 6 sports.  Trinidad and Tobago's participation in these games marked its sixteenth Olympic appearance as an independent nation, although it had previously competed in four other games (including the 1948 debut in the same host city London) as a British colony, and as part of the West Indies Federation.  The nation was awarded four Olympic medals based on the efforts by the athletes who competed in the track and field.  Javelin thrower Keshorn Walcott became the first Trinidadian athlete to win an Olympic gold medal since the 1976 Summer Olympics in Montreal, where Hasely Crawford won for the sprint event.  Marc Burns, a four-time Olympic athlete and a relay sprinter who led his team by winning the silver medal in Beijing, was the nation's flag bearer at the opening ceremony.

César Castro: Cesar Augusto Aquino de Castro (born September 2, 1982) is a Brazilian competitive diver from Brasília, Distrito Federal.  Castro has represented Brazil in four consecutive Olympics Summer Olympics, 2004 Summer Olympics in Athens Games, 2008 Summer Olympics in Beijing, 2012 Summer Olympics in London, and 2016 Summer Olympics in Rio de Janeiro.

Japan at the 2012 Summer Olympics: Japan, represented by Japanese Olympic Committee, competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012.  Despite being London's third Olympic games, Japan marked their London debut at this games.  The nation also celebrated its centennial anniversary in the Olympics, having participated at every games since 1912 except for two editions; it was not invited to the 1948 Summer Olympics in London for its instigation of World War II, and was also part of the US-led boycott of the 1980 Summer Olympics in Moscow.  Japan sent a total of 295 athletes to the Games, 138 men and 157 women, to compete in 24 sports.

McKayla Maroney: McKayla Rose Maroney (born December 9, 1995) is an American former artistic gymnast.  She was a member of the U.S. women's gymnastics team dubbed the Fierce Five at the 2012 Summer Olympics, where she won a gold medal in the team and an individual silver medal in the vault event.  Maroney was also a member of the gold-winning American team at the 2011 World Championships where she won gold medals in the team and vault competitions.  She defended her World title and won the gold medal on vault at the 2013 World Championships, becoming the first U.S. female gymnast to defend a World Championships vault title.  A photograph of her with a "not impressed" expression, taken after winning silver in the 2012 Olympics, became an Internet meme.  She decided in 2016 to no longer compete in gymnastics due to health issues.

Luke Hall (swimmer): Luke Thomas Michael Hall (born 16 April 1989) is a Swazi swimmer.  He competed at the 2008 Summer Olympics and the 2012 Summer Olympics where he was the flag bearer for his country.  In the 2012 Summer Olympics he came fourth in his heat with the time of 23.48s. His preparation for the Olympics was a very tough process.  Fortunately enough, he was given a wildcard entry into the London 2012 Olympic Games.  After his race, Luke said to the press "My hard work has paid off coming into the Olympics.  But for Swaziland, we need pools like these {Pointing at olympic pool} in order to be able to compete in this event".  This has certainly raised awareness in Swaziland and the government has already decided in putting in 20 m pools in some areas of Swaziland.

Bulgaria at the 2012 Summer Olympics: Bulgaria competed at the 2012 Summer Olympics in London, United Kingdom from 27 July to 12 August 2012.  It was the nation's nineteenth appearance at the Summer Olympics, having missed the Olympics on three different occasions, including the 1984 Summer Olympics in Los Angeles because of the Soviet boycott.  Despite this being London's third Olympic Games, this was the first time a Bulgarian team appeared at a London Olympics.  The Bulgarian Olympic Committee sent the nation's smallest delegation to the Games, tying the record with Helsinki in 1952, and with Tokyo in 1964.  A total of 63 athletes, 36 men and 27 women, competed in 16 sports.  Men's volleyball was the only team event in which Bulgaria was representated in these Olympic games.  There was only a single competitor in badminton, sprint canoeing, fencing, and judo.

Floris Evers: Floris Maarten Alphons Maria Evers (born 26 February 1983 in Tilburg, Noord-Brabant) is a field hockey player from the Netherlands, who won the silver medal with the Dutch national team at the 2004 Summer Olympics and at the 2012 Summer Olympics.  He was the captain of the team at the 2012 Summer Olympics.  He has played in all the top leagues the world of field hockey.  Recently after the London Olympics, he, along with Teun de Noijer (another great), retired from the international hockey.  He currently plays with the Ranchi Rhinos, in the Indian hockey league (as of Feb 2013).

Fierce Five: The Fierce Five was the artistic gymnastics team that won the second team gold medal for the United States, and the first gold medal on international soil, in the women's team competition at the 2012 Summer Olympics in London.  Originally referred to as the Fab Five, the five members of the team were Gabby Douglas, McKayla Maroney, Aly Raisman, Kyla Ross, and Jordyn Wieber.  Later in the Olympic Games, Douglas won a gold medal in the individual all-around event, becoming the first African-American to ever do so; Maroney won silver on vault; Raisman, the team captain, won bronze on balance beam and gold on floor exercise.

Chana Masson: Chana Masson (born 18 December 1978 in Capinzal) is a Brazilian handball goalkeeper.  She has represented the Brazilian national team in four Olympics.  She participated at the 2000 Summer Olympics in Sydney, at the 2004 Summer Olympics in Athens, the 2008 Summer Olympics in Beijing and the 2012 Summer Olympics in London.

Supporting paragraphs: Fierce Five McKayla Maroney
Answer: The Fierce Five