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: Where is the descending aorta located in the mediastinum?

Output: posterior mediastinal cavity


Input: Consider Input: What year is c in a vin number?

Output: 1982, 2012


Input: Consider Input: Detroit was founded by an explorer with what last name?


Output: Cadillac