instruction:
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.
question:
Category: U.S. PRESIDENTS 
Clue: Adventurous 26th president, he was 1st to ride in an automobile & an airplane
answer:
theodore roosevelt


question:
Category: PULITZER PRIZE-WINNING BOOKS 
Clue: One of its title studies is Sen. Edmund Ross' 1868 vote against convicting President Andrew Johnson
answer:
profiles in courage


question:
Category: TOYS 
Clue: Invented in 1943, this toy was flung over tree branches by soldiers in Vietnam & used as a makeshift radio antenna
answer:

the slinky