Premise: Margaret Court ( née Smith ; born 16 July 1942 ) , also known as Margaret Smith Court , is a retired Australian tennis player and former world No. 1 . Steffi Graf . In 1999 Billie Jean King said `` Steffi is definitely the greatest women 's tennis player of all time '' .
Hypothesis: Steffi Graf is incapable of being a tennis player.
Label: CONTRADICTION