Question: A retired Olympic gold medal-winning decathlete was parodied on what animated television series?

Context paragraphs:
Caitlyn Jenner: Caitlyn Marie Jenner (born October 28, 1949), formerly known as Bruce Jenner, is an American television personality and retired Olympic gold medal-winning decathlete.

Jiang Yuyuan: Jiang Yuyuan (also Yuyan; ; born November 1, 1991 in Liuzhou, Guangxi) is a retired Chinese gymnast.  She is the 2008 Chinese all-around senior National Champion and a member of the gold medal-winning People's Republic of China team for the 2008 Summer Olympics.  Jiang was a member of the silver medal-winning Chinese team at the 2007 World Championships, the bronze medal-winning member at the 2010 World Championships and 2011 World Championships, and the all-around gold medalist at the 2007 Good Luck Beijing Olympic test event.  In 2010, she replaced Cheng Fei as the captain of the Chinese national team (due to Fei's leg injury).  She won silver medal in the all-around competition at the 2010 World Championships, which is the highest position that Chinese women ever placed in all-around competition at World Championships or Olympic level.

Lee Lai-shan: Lee Lai-Shan MBE BBS () (born in Cheung Chau, Hong Kong, 5 September 1970) is a former world champion and Olympic gold medal-winning professional windsurfer from Hong Kong.  She was the only athlete to win an Olympic medal representing British Hong Kong, before the territory's transfer to China in 1997, and remains the only person to win an Olympic gold medal for Hong Kong.

John Hargis: John Lawson Hargis (born July 3, 1975) is an American former competition swimmer, Olympic gold medalist, and college swimming coach.  Hargis represented the United States at the 1996 Summer Olympics, and was a member of the gold medal-winning U.S. 4×100-meter medley relay team.  He is currently the head coach of the Pittsburgh Panthers swimming and diving team at University of Pittsburgh.

Carli Lloyd: Carli Anne Lloyd (born July 16, 1982) is an American soccer player, two-time Olympic gold medalist, FIFA Women's World Cup champion, 2015 FIFA Player of the Year and 2016 FIFA Player of the Year.  She currently plays for Manchester City in the FA Women's Super League and the United States women's national soccer team as a midfielder.  Lloyd scored the gold medal-winning goals in the finals of the 2008 Summer Olympics and the 2012 Summer Olympics.  She has represented the United States at three FIFA Women's World Cup tournaments: the 2007 FIFA Women's World Cup, in which she helped the U.S. win bronze; the 2011 FIFA Women's World Cup, in which the U.S. won silver; and the 2015 FIFA Women's World Cup, where Lloyd scored a hat trick, including a goal from midfield, in the final in captaining the U.S. to its third title.

Where My Country Gone?: "Where My Country Gone?"  is the second episode of the nineteenth season of the animated television series "South Park", and the 259th episode overall, written and directed by series co-creator Trey Parker.  The episode premiered on Comedy Central on September 23, 2015.  It parodies illegal immigration to the United States and the 2016 presidential candidacy of Donald Trump, along with Caitlyn Jenner and political correctness.

Simone Biles: Simone Arianne Biles (born March 14, 1997) is an American artistic gymnast.  Biles is the 2016 Olympic individual all-around, vault and floor gold medalist.  She was part of the gold medal-winning team dubbed the "Final Five" at the 2016 Summer Olympics in Rio de Janeiro.  Biles is a three-time world all-around champion (2013–15), three-time world floor champion (2013–15), two-time world balance beam champion (2014, 2015), four-time United States national all-around champion (2013–16), and a member of the gold medal-winning American teams at the 2014 and 2015 World Artistic Gymnastics Championships.  She also won the bronze medal for the balance beam at the Olympics and the vault at the 2015 World Championships.

MS Voyager of the Seas: MS "Voyager of the Seas" is the lead ship of the "Voyager"-class of cruise ships operated by Royal Caribbean International (RCI).  Constructed by Kværner Masa-Yards at its Turku New Shipyard in Turku, Finland, she was serviced on November 27, 1998, and christened by Olympic gold medal-winning figure skater Katarina Witt on November 20, 1999.

Cheng Fei: Cheng Fei (; born May 29, 1988 in Huangshi, Hubei) is a retired Chinese gymnast.  She is a three-time World Champion on the vault (2005–2007) and 2006 World Champion on floor exercise.  She was a member of the gold medal-winning Chinese teams for the 2006 World Artistic Gymnastics Championships in Aarhus, Denmark and 2008 Olympic Games in Beijing, China.  She was also a member of the silver medal-winning Chinese team for the 2007 World Artistic Gymnastics Championships in Stuttgart, Germany.

Sandra Morgan: Sandra Anne Morgan (born 6 June 1942), also known by her married name Sandra Beavis, or as Sandra Morgan-Beavis, is an Australian former freestyle swimmer who was part of the gold medal-winning team in the 4×100-metre freestyle relay at the 1956 Summer Olympics in Melbourne.  At the age of 14 years and 6 months, she became the youngest Australian to win an Olympic gold medal, a record that still stands.

Supporting paragraphs: Where My Country Gone? Caitlyn Jenner
Answer: South Park