Premise: Billie Jean King . King won 39 Grand Slam titles : 12 in singles , 16 in women 's doubles , and 11 in mixed doubles . King won the singles title at the inaugural WTA Tour Championships . In 1973 , at age 29 , she won the Battle of the Sexes tennis match against the 55-year-old Bobby Riggs , and was the founder of the Women 's Tennis Association , World TeamTennis ( with former husband Larry King ) , and the Women 's Sports Foundation .
Hypothesis: Billie Jean King is a tennis player.
Label: ENTAILMENT