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.

Example Input: Who wrote the patriotic song sare jahan se achcha?
Example Output: Muhammad Iqbal

Example Input: When did the term great britain come into use?
Example Output: 1474

Example Input: How many nightmare on elm st movies are there?
Example Output:
nine