TASK DEFINITION: In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.
PROBLEM: Journal of optics a pure and applied optics abbreviation?

SOLUTION: J. Opt.

PROBLEM: Voice of the king in bedknobs and broomsticks?

SOLUTION: Leonard Weinrib

PROBLEM: Who won the fifa world cup in 1958?

SOLUTION:
Brazil national football team