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.

Category: PRESIDENTIAL NICKNAMES 
Clue: "Butcher from Galena"
grant

Category: THE UNITED NATIONS 
Clue: In 1971 this future secretary-general was a candidate for the presidency of Austria
kurt waldheim

Category: CAN I GET YOUR LITERARY NUMBER? 
Clue: A game about Kevin Bacon was inspired by the title of this play

six degrees of separation