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:
How many mammal species live wild in ireland today?

Ex Output:
60


Ex Input:
What is on top of the space needle?

Ex Output:
observation deck


Ex Input:
Most likely which tribe did the spanish take the word texas from?

Ex Output:

Caddo