Question: who exercises political control over the rest of the nation in the first book of The Hunger Games Trilogy?

Context articles: The Hunger Games (film)
Fictional world of The Hunger Games
The Hunger Games (film series)
Suzanne Collins
The Hunger Games: Mockingjay – Part 2
The Hunger Games: Mockingjay – Part 1
The Hunger Games: Catching Fire
Catching Fire
The Hunger Games (novel)
Generation O!

The Hunger Games is a 2012 American dystopian science fiction adventure film directed by Gary Ross and based on the novel of the same name by Suzanne Collins.
 It is the first installment in "The Hunger Games" film series and was produced by Nina Jacobson and Jon Kilik, with a screenplay by Ross, Collins, and Billy Ray.
 The film stars Jennifer Lawrence, Josh Hutcherson, Liam Hemsworth, Woody Harrelson, Elizabeth Banks, Lenny Kravitz, Stanley Tucci, and Donald Sutherland.
 The story takes place in a dystopian post-apocalyptic future in the nation of Panem, which is divided into 12 districts, where a boy and a girl from each district, between the ages of 12 and 18 must take part in The Hunger Games, a televised annual event in which the "tributes" of each district, are required to fight to the death, until there is only one survivor.
 Katniss Everdeen (Jennifer Lawrence) volunteers to take her younger sister's place.
 With her district's male tribute, Peeta Mellark (Josh Hutcherson), Katniss travels to the Capitol to train for the Hunger Games under the guidance of former victor Haymitch Abernathy (Woody Harrelson).
"The Hunger Games" universe is a fictional world appearing in "The Hunger Games" trilogy written by Suzanne Collins.
 It consists primarily of the fictional nation of Panem, its Capitol where the totalitarian government resides, and the outlying districts, numbered 1 to 12, each with a different economy.
 In addition, there is the secretive District 13, where a rebel force is building strength.
 The Hunger Games themselves are an annual event in which citizens from the districts, selected through a process called "reaping", are forced to participate in a battle to the death.
 The universe also contains fictional flora and fauna, such as the Mockingjay, a bird whose mimicry is used as a plot device, and after whom the third book in the series is named.
The Hunger Games film series consists of four science fiction dystopian adventure films based on "The Hunger Games" trilogy of novels, by the American author Suzanne Collins.
 Distributed by Lionsgate and produced by Nina Jacobson and Jon Kilik, it stars Jennifer Lawrence as Katniss Everdeen, Josh Hutcherson as Peeta Mellark, Woody Harrelson as Haymitch Abernathy, Elizabeth Banks as Effie Trinket, Philip Seymour Hoffman as Plutarch Heavensbee, Stanley Tucci as Caesar Flickerman, Donald Sutherland as President Snow and Liam Hemsworth as Gale Hawthorne.
 Gary Ross directed the first film, while Francis Lawrence directed the next three films.
Suzanne Collins (born August 10, 1962) is an American television writer and author, best known as the author of "The New York Times" best selling series "The Underland Chronicles" and "The Hunger Games" trilogy (which consists of "The Hunger Games", "Catching Fire", and "Mockingjay").
The Hunger Games: Mockingjay – Part 2 is a 2015 American dystopian science fiction adventure film directed by Francis Lawrence, with a screenplay by Peter Craig and Danny Strong.
 It is the fourth and final installment in "The Hunger Games" film series, and the second of two films based on the novel "Mockingjay", the final book in "The Hunger Games" trilogy, by Suzanne Collins.
 Produced by Nina Jacobson and Jon Kilik, and distributed by Lionsgate, the film features an ensemble cast that includes Jennifer Lawrence, Josh Hutcherson, Liam Hemsworth, Woody Harrelson, Elizabeth Banks, Julianne Moore, Philip Seymour Hoffman, and Donald Sutherland.
 Hoffman died in February 2014, making "Mockingjay – Part 2" his final film role.
 Principal photography on both parts of the film began on September 23, 2013 in Atlanta, before moving to Paris for two weeks of back-to-back filming and officially concluding on June 20, 2014, in Berlin and at Babelsberg Studios, Germany.
The Hunger Games: Mockingjay – Part 1 is a 2014 American dystopian science fiction adventure film directed by Francis Lawrence with a screenplay by Peter Craig and Danny Strong.
 It is the first of two films based on Suzanne Collins' novel " Mockingjay", the final book in "The Hunger Games" trilogy, and the third installment in "The Hunger Games" film series, produced by Nina Jacobson and Jon Kilik and distributed by Lionsgate.
 The film features an ensemble cast that includes Jennifer Lawrence, Josh Hutcherson, Liam Hemsworth, Woody Harrelson, Elizabeth Banks, Julianne Moore, Philip Seymour Hoffman, Jeffrey Wright, Stanley Tucci, and Donald Sutherland.
 Principal photography for both parts of the film began on September 23, 2013, in Atlanta, before moving to Paris for two weeks of filming and officially concluding on June 20, 2014, in Berlin.
The Hunger Games: Catching Fire is a 2013 American dystopian science fiction adventure film based on Suzanne Collins' dystopian novel, "Catching Fire" (2009), the second installment in "The Hunger Games" trilogy.
 The film is the sequel to "The Hunger Games" (2012) and the second installment in "The Hunger Games" film series, produced by Nina Jacobson and Jon Kilik, and distributed by Lionsgate.
 Francis Lawrence directed the film, with a screenplay by Simon Beaufoy and Michael Arndt.
 Adding to the existing cast, the supporting cast was filled out with Philip Seymour Hoffman, Jeffrey Wright, Jena Malone, Sam Claflin, Lynn Cohen, Amanda Plummer, Alan Ritchson, and Meta Golding.
 Filming began on September 10, 2012, in Atlanta, Georgia, before moving to Hawaii.
 The plot of "Catching Fire" takes place a few months after the previous installment; Katniss Everdeen and fellow District 12 tribute Peeta Mellark have returned home safely after winning the 74th Annual Hunger Games.
 Throughout the story, Katniss senses that a rebellion against the oppressive Capitol is simmering throughout the districts.
Catching Fire is a 2009 science fiction young adult novel by the American novelist Suzanne Collins, the second book in "The Hunger Games trilogy".
 As the sequel to the 2008 bestseller "The Hunger Games", it continues the story of Katniss Everdeen and the post-apocalyptic nation of Panem.
 Following the events of the previous novel, a rebellion against the oppressive Capitol has begun, and Katniss and fellow tribute Peeta Mellark are forced to return to the arena in a special edition of the Hunger Games.
The Hunger Games is a 2008 dystopian novel by the American writer Suzanne Collins.
 It is written in the voice of 16-year-old Katniss Everdeen, who lives in the future, post-apocalyptic nation of Panem in North America.
 The Capitol, a highly advanced metropolis, exercises political control over the rest of the nation.
 The Hunger Games is an annual event in which one boy and one girl aged 12–18 from each of the twelve districts surrounding the Capitol are selected by lottery to compete in a televised battle to the death.
Generation O!
 is an American animated television comedy series made by Sunbow Entertainment, with co-production provided by Wang Films in Taiwan and Ravensberger in Germany.
 There are also international versions of the series called "Molly O!"
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 Generation O!
 was originally called "Molly O!"
 and was created by David Hale, Tim Newman and James Proimos, based on an original idea by Hale and Newman.
 Executive Producers were Carole Wietzman, Martha Ripp and Ken Olshansky.
 The Creative Producer and Director was Mike Milo and the Line Producer was Jodey Kaminsky-Cashman.
 Most of the episodes were written by Suzanne Collins, author of The Underland Chronicles and The Hunger Games trilogy.
 John Hardman was the production exec at The WB.