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 plays agent romanoff in iron man 2?

Output: Scarlett Johansson


Input: Consider Input: When did ice dancing debut in the olympics?

Output: 1976 Winter Olympics


Input: Consider Input: When was the term sustainable development first used?


Output: 1980