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: When did united last win the champions league?
Example Output: 21 May 2008

Example Input: How many times has alec baldwin hosted saturday night live?
Example Output: 17

Example Input: Who is the longest serving prime minister of england?
Example Output:
Sir Robert Walpole