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.

Ex Input:
When did the civil war end in sierra leone?

Ex Output:
18 January 2002


Ex Input:
Who played robin's mother on how i met your mother?

Ex Output:
Tracey Ullman


Ex Input:
Who played john brown in the blue and the gray?

Ex Output:

Sterling Hayden