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.

Example Input: Journal of optics a pure and applied optics abbreviation?
Example Output: J. Opt.

Example Input: Who played the boy in mad max 2?
Example Output: Emil Minty

Example Input: Who launched the bardoli satyagraha on 4th february 1928?
Example Output:
Vallabhbhai Patel