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 sang the original version of let it rain?

Output: Eric Clapton


Input: Consider Input: When does arrow season 6 air on tv?

Output: October 12, 2017


Input: Consider Input: Which part of the cns is made up of the midbrain?


Output: brainstem