Question: In what country were the second Summer Olympics at which Hanna Titimets represented Ukraine celebrated?

Context paragraphs:
Elbrus Tedeyev: Elbrus Tedeyev (born December 5, 1974 in Nogir, Prigorodny District, North Ossetian ASSR, Soviet Union) is a Ossetian wrestler and Olympic champion; he became a citizen of Ukraine in 1993.  He won a gold medal at the 2004 Summer Olympics in Athens.  He is a three-time world champion and the brother of Dzhambolat Tedeyev, who also represented Ukraine.

Hanna Titimets: Hanna Sergiyivna Titimets (Ukrainian: Анна Сергіївна Тітімець; born 5 March 1989) is a Ukrainian hurdler.  She represented her country at the 2012 and 2016 Summer Olympics narrowly missing the final on both occasions.  In addition, she competed at two World Championships, in 2011 and 2013.  Titimets won the silver medal at the 2014 European Championships.

List of Olympic female gymnasts for Ukraine: Ukrainian female gymnasts have competed in every Olympics since 1996.  A total of 23 female gymnasts have represented Ukraine at the Olympics, but the only medalist is Lilia Podkopayeva.  Lilia Podkopayeva won a total of 3 medals at the 1996 Summer Olympics, and she was the first multiple Olympic medalist from Ukraine.  In the team competition, Ukraine finished 5th in 1996 and 2000, 4th in 2004, and 11th in 2008.  Ukraine was only allowed to send one gymnast to the 2012 Summer Olympics and to the 2016 Summer Olympics.

2016 Summer Olympics: The 2016 Summer Olympics (Portuguese: "Jogos Olímpicos de Verão de 2016" ), officially known as the Games of the XXXI Olympiad and commonly known as Rio 2016, was a major international multi-sport event celebrated in Rio de Janeiro, Brazil, from 5 to 21 August 2016.

Marija Ulitina: Marija Ulitina (born 5 November 1991) is a badminton player from Ukraine and the National Champion of Ukraine.  She represented Ukraine in the 2016 Summer Olympics and proceeded to the knockout round after defeating the former world number one Saina Nehwal of India and Lohaynny Vicente of Brazil in the group stage.

1988 Summer Olympics: The 1988 Summer Olympics, officially known as the Games of the XXIV Olympiad (Korean: 서울 하계 올림픽 ; --夏季--- ; "Seoul Hagye Ollimpik " ; ] ), were an international multi-sport event celebrated from 17 September to 2 October 1988 in Seoul, South Korea.  They were the second summer Olympic Games to be held in Asia and the first since the 1964 Summer Olympics held in Tokyo, Japan.  Seoul is the largest city to host the Summer Olympics, a title soon to be turned over to Tokyo in 2020.

Nataliya Kyshchuk: Nataliya Kyshchuk (original name: Наталія Кищук; Also written as: Natalya Kishchuk or Наталья Кищук; born 27 May 1968) is a road cyclist from Ukraine.  She competed at 1992 Summer Olympics without representing a nation as part of the Unified Team in the women's road race.  She represented Ukraine at the 1996 Summer Olympics in the women's road race.

Nataliya Mustafayeva: Nataliya Mustafayeva (born 11 August 1985 in Rivne) is an Azerbaijani rower who formerly competed for Ukraine.  She finished 4th in the women's quadruple sculls at the 2008 Summer Olympics, where she represented Ukraine.  She competed for Azerbaijan in the single sculls race at the 2012 Summer Olympics and placed 6th in Final B and 12th overall.

Tetyana Lazareva: Tetyana Viktorivna Lazareva (Ukrainian: Тетяна Вікторівна Лазарева ; born 4 July 1981) is a Ukrainian female wrestler.  She represented Ukraine at the 2012 Summer Olympics in women's freestyle 55 kg.  She finished 5th after losing to Tonya Verbeek in the quarter-finals and to Jackeline Renteria in the repechage.  She competed in the same weight category at the 2004 Summer Olympics.

Serhiy Dotsenko: Serhiy Dotsenko (Ukrainian: Сергій Доценко ; born July 27, 1979 in Simferopol, Ukraine) is a Russian former professional boxer who competed during 2001.  As an amateur, Dotesenko represented Ukraine at the 2000 Summer Olympics and won the silver medal in the welterweight bracket.

Supporting paragraphs: Hanna Titimets 2016 Summer Olympics
Answer: Brazil