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.

Where is the descending aorta located in the mediastinum?
posterior mediastinal cavity

Who sang the original version of let it rain?
Eric Clapton

Who holds the record for the maximum number of triple centuries in odis?

Virender Sehwag