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: Which unit is used to measure mass in the metric system?

Output: kilogramme


Input: Consider Input: Who plays alex von strucker in agents of shield?

Output: Spencer Treat Clark


Input: Consider Input: Who has won champions league 3 times in a row?


Output: Real Madrid Club de Fútbol