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: What episode did alex bowen come in on love island?
Example Output: Day 18

Example Input: Who plays the voice of ted in the movie ted?
Example Output: Seth Woodbury MacFarlane

Example Input: Which gas is used in oxygen cylinder in hospital?
Example Output:
O2