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: Who wrote the song imagine by the beatles?

Output: John Lennon and Yoko Ono


Input: Consider Input: Star trek the next generation number of episodes?

Output: 178


Input: Consider Input: Who was the king of persia during the second invasions of greece?


Output: Xerxes the Great


