Premise: Heather Watson . On 14 October 2012 , Watson won her first WTA singles title with a win over Chang Kai-chen of Taiwan in the final of the Japan Open , becoming the first British female to win a WTA singles title since Sara Gomer in 1988 . The Women 's Tennis Association ( WTA ) , founded in 1973 by Billie Jean King , is the principal organizing body of women 's professional tennis .
Hypothesis: Heather Watson plays the sport tennis.
Label: ENTAILMENT