Premise: Katharine Houghton Hepburn ( May 12 , 1907 -- June 29 , 2003 ) was an American actress . She found a niche playing middle-aged spinsters , such as in The African Queen ( 1951 ) , a persona the public embraced . Three more Oscars came for her work in Guess Who 's Coming to Dinner ( 1967 ) , The Lion in Winter ( 1968 ) , and On Golden Pond ( 1981 ) .
Hypothesis: Katharine Hepburn acts.
Label: ENTAILMENT