Premise: Usain Bolt . Bolt is the only sprinter to win Olympic 100 m and 200 m titles at three consecutive olympics ( 2008 , 2012 and 2016 ) , a feat referred to as the `` triple double . '' He is the most successful athlete of the World Championships and was the first athlete to win three titles in both the 100 m and 200 m at the competition . Bolt 's most successful event is the 200 m , with three Olympic and four World titles . The 2008 Olympics was his international debut over 100 m ; he had earlier won numerous 200 m medals ( including 2007 World Championship silver ) and holds the world under-20 and world under-18 records for the event .
Hypothesis: Usain Bolt has competed in a contest.
Label: ENTAILMENT