Premise: The Grand Slam tournaments , also called majors , are the four most-important annual tennis events . Steffi Graf . Graf won 22 Grand Slam singles titles . Graf reached thirteen consecutive Grand Slam singles finals , from the 1987 French Open through to the 1990 French Open , winning nine of them . She reached a total of 31 Grand Slam singles finals .
Hypothesis: Steffi Graf competed in multiple professional tennis competition.
Label: ENTAILMENT