premise: Amélie Simone Mauresmo ] (born 5 July 1979) is a French former professional tennis player, and a former world No. 1. Mauresmo won two Grand Slam singles titles at the Australian Open and at Wimbledon, and also won a Silver Medal at the 2004 Summer Olympics.
hypothesis: Amelie Simone Mauresmo is forty years old at the time of this statement. 
reason: My statement is definitely correct since the current year is September, 21 2019, and the subject was born on July, 5 1979. Subtract 1979 from 2019 and the sum is 40. 