Premise: The Grand Slam tournaments , also called majors , are the four most-important annual tennis events . Venus Ebony Starr Williams ( born June 17 , 1980 ) is an American professional tennis player who is generally regarded as one of the all-time greats of women 's tennis and who , along with younger sister Serena Williams , is credited with ushering in a new era of power and athleticism on the women 's professional tennis tour . Ranked World No. 11 in singles as of January 28 , 2017 , Williams has been ranked World No. 1 by the Women 's Tennis Association on three occasions , for a total of 11 weeks . She is the only tennis player to have won a medal at four separate Olympic Games . On the other side , the pair have won 14 Grand Slam doubles titles playing alongside each other and are undefeated in Grand Slam finals .
Hypothesis: Venus Williams is a tennis player.
Label: ENTAILMENT