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: Who played chip douglas on my three sons?
Example Output: Stanley Livingston

Example Input: What branch of biology creates models to make whole biological systems understandable?
Example Output: computational systems biology, systems biology and mathematical biology

Example Input: Who did seahawks play in super bowl 2014?
Example Output:
Denver Broncos