Question: The boxer that won the silver medal in the men's super heavyweight event at the 2016 Summer Olympics was born in what year?

full_context: Document 1: Umar Salamov: Umar Salamov (born 7 June 1994, Alkhan-Kala, Russia) is a Russian light-heavyweight professional boxer. Salamov has held the WBO Youth World Light Heavyweight title, IBO Youth World Light Heavyweight title and the IBO World Light Heavyweight title. Salamov is currently ranked 8th in the WBO world rankings and 19th in Boxrec independent computerized rankings.
Document 2: Joe Joyce (boxer): Joseph "Joe" Joyce (born 19 September 1985) is a British professional boxer.
Document 3: Oleksandr Usyk: Oleksandr Oleksandrovych Usyk (Ukrainian: Олекса́ндр Олекса́ндрович У́сик ) is a Ukrainian professional boxer who has held the WBO junior heavyweight title since 2016. As of May 2017 he is ranked as the world's best in the division by "The Ring" magazine, the Transnational Boxing Rankings Board, and BoxRec. As an amateur, Usyk won gold medals at the 2011 World Championships and 2012 Olympics, both in the heavyweight division.
Document 4: Davilson Morais: Davilson Morais (born February 3, 1989) is a Cabo Verdean boxer. He competed at the 2016 Summer Olympics in the men's super heavyweight event, in which he was eliminated in the round of 16 by Joe Joyce.
Document 5: Jesse Joyce: Jesse Joyce (born September 24, 1978) is an American stand-up comedian, Emmy Nominated and WGA Award winning writer.
Document 6: Joe Calzaghe: Joseph William Calzaghe, {'1': ", '2': ", '3': ", '4': "} ( ; born 23 March 1972) is a Welsh former professional boxer who competed from 1993 to 2008. He is a two-weight world champion, having held the unified WBA (Super), WBC, IBF, WBO, "Ring" magazine, and lineal super-middleweight titles, as well as the "Ring" light-heavyweight title. Calzaghe is the longest-reigning super-middleweight world champion in boxing history, having held the WBO title for over 10 years and making 21 successful defences before moving up to light-heavyweight. As his super-middleweight and light-heavyweight reigns overlapped, he retired with the longest continual time as world champion of any active fighter.
Document 7: Roy Jones Jr.: Roy Levesta Jones Jr. (born January 16, 1969) is an American professional boxer, boxing commentator, boxing trainer, rapper, and actor who holds dual American and Russian citizenship. He is a six-time former world champion in four weight classes, having held titles at middleweight, super middleweight, light heavyweight, and heavyweight; and is the only boxer in history to start his professional career at light middleweight and go on to win a heavyweight title. As an amateur he represented the United States at the 1988 Summer Olympics, winning a silver medal in the light middleweight division.
Document 8: Tyson Fury: Tyson Luke Fury (born 12 August 1988) is a British professional boxer. He has held the "Ring" magazine heavyweight title since 2015, after defeating long-reigning world champion Wladimir Klitschko. In the same fight, Fury also won the unified WBA (Super), IBF, WBO, IBO and lineal titles, with the victory earning him Fighter of the Year and Upset of the Year awards by "The Ring". Fury was subsequently stripped of the IBF title later that year for being unable to grant a fight against their mandatory challenger, Vyacheslav Glazkov, due to agreeing to a rematch with Klitschko. In 2016, Fury vacated the WBA, WBO, IBO, and lineal titles following an ongoing medical investigation and personal issues and two cancellations of the Klitschko rematch. In August 2016, Fury was ranked by BoxRec as the world's sixth best active boxer, pound for pound.
Document 9: Joey Singleton: Joey "The Jab" Singleton, was a professional boxer born in Kirkby, Liverpool, England. Born 6-6-1951. Joey was a light welterweight boxer and won the British title in a distinguished career as a professional.
Document 10: Bakhodir Jalolov: Bakhodir Jalolov (born 8 July 1994) is a Uzbekistani boxer. He competed in the men's super heavyweight event at the 2016 Summer Olympics. He defeated Edgar Muñoz of Venezuela by TKO in the round of 16. He was defeated by eventual silver medalist, Joe Joyce of Great Britain in the quarterfinals. Jalolov was the flagbearer for Uzbekistan during the opening ceremony.
Document 11: Justin Juuko: Justin "The Destroyer" Juuko (born 26 December 1972 in Masaka) is a Ugandan amateur light flyweight and professional feather/super feather/light/light welter/welterweight boxer of the 1990s, 2000s and 2010s who as an amateur won the gold medal at light flyweight in the Boxing at the 1990 Commonwealth Games in Auckland, New Zealand, and as a professional won the World Boxing Council (WBC) International super featherweight title, World Boxing Council (WBC) FECARBOX super featherweight title, African Boxing Union (ABU) light welterweight title, North American Boxing Federation (NABF) super featherweight title, and Commonwealth super featherweight title, and was a challenger for the interim World Boxing Association (WBA) World super featherweight title against Antonio Hernandez, World Boxing Council (WBC) super featherweight title against Floyd Mayweather, Jr., International Boxing Association (IBA) super featherweight title against Diego Corrales, World Boxing Union (WBU) super featherweight title against Michael Gomez, International Boxing Association (IBA) lightweight title against Rustam Nugaev, Global Boxing Union (GBU) light welterweight title against Gábor Vető, his professional fighting weight varied from 125 lb , i.e. featherweight to 143 lb , i.e. welterweight.
Document 12: Hussein Ishaish: Hussein Ishaish (born 6 August 1995) is a Jordanian boxer. He competed in the men's super heavyweight event at the 2016 Summer Olympics. He defeated Mihai Nistor of Romania in the round of 16. He was then defeated by eventual gold medalist Tony Yoka of France in the quarterfinals. Ishaish was the flagbearer for Jordan during the Parade of Nations.
Document 13: Anthony Joshua: As of May 2017, Joshua is ranked as the world's best heavyweight by the Transnational Boxing Rankings Board and BoxRec, and second best by "The Ring". His knockout-to-win ratio stands at 100%. Joshua is the second British boxer, after James DeGale, to win both a gold medal at the Olympics and a world title by a major professional sanctioning body, as well as being the first British heavyweight to do so. He is also the second boxer, after Joe Frazier, to win a world heavyweight title whilst still reigning as Olympic champion at the top weight.
Document 14: Josh Kelly (boxer): Josh Kelly (born 7 March 1994) is a British boxer. He competed in the men's welterweight event at the 2016 Summer Olympics.
Document 15: David Haye: David Deron Haye (born 13 October 1980) is a British professional boxer who has held world titles in two weight classes. He is the first British boxer to reach the final of the World Amateur Boxing Championships, where he won a silver medal in 2001. As a professional he became the first British boxer to become a unified cruiserweight world champion in 2008, winning three of the four major world titles, as well as the "Ring" magazine and lineal titles. In the same year he moved up to heavyweight, and became the WBA champion in 2009 after defeating Nikolai Valuev, who had a world record 9 in height and 99 lb weight advantage on Haye.
ground_truth: 1985