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.

Input: Consider Input: When did the new orleans saints win the superbowl?

Output: 2009


Input: Consider Input: Who wrote the song flight of the bumblebee?

Output: Nikolai Rimsky-Korsakov


Input: Consider Input: Means that research must measure what it purports to measure?


Output: Construct validity