TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
PROBLEM: Category: WORLD LEADERS 
Clue: At his 1994 inaugural, he called for "a rainbow nation at peace with itself and the world"

SOLUTION: nelson mandela

PROBLEM: Category: FAMOUS PEOPLE 
Clue: In 1998 the govt. of Ontario was forced to pay them $2.8 million for exploiting them decades ago

SOLUTION: the dionne quintuplets

PROBLEM: Category: U.S. PRESIDENTS 
Clue: Washington was the one who added these 4 words to the presidential oath; they're not in the Constitution

SOLUTION:
\"so help me god\"