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: Who published the moscow mathematical papyrus in 1930?

SOLUTION: Struve, Vasilij Vasil'evič, and Boris Turaev

PROBLEM: Who sang burning bridges in kelly's heroes?

SOLUTION: the Mike Curb Congregation

PROBLEM: When did congress pass the clean air act?

SOLUTION:
December 17 , 1963