TASK DEFINITION: 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.
PROBLEM: Where is the descending aorta located in the mediastinum?

SOLUTION: posterior mediastinal cavity

PROBLEM: Who pays for the renovations on holmes next generation?

SOLUTION: homeowners, some contractors

PROBLEM: Where does the last name martinez originate from?

SOLUTION:
root is Mars, the name of the Roman god