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 these boots were made for walking first?

Output: Nancy Sinatra


Input: Consider Input: Where are sister chromatids attached to one another?

Output: common centromere


Input: Consider Input: Most world series wins american or national league?


Output: American League