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: How many navratna companies are there in india?

Output: 14 Navratnas


Input: Consider Input: When was the song you're so vain written?

Output: 1971


Input: Consider Input: The la plata river basin of south america is also known as?


Output: River Plate basin