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:
Who was the presiding officer at the constitutional convention?

Ex Output:
George Washington


Ex Input:
Which unit is used to measure mass in the metric system?

Ex Output:
kilogramme


Ex Input:
When was the novel the great escape written?

Ex Output:

1950