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: Who sang the original version of me and mrs jones?

SOLUTION: Billy Paul

PROBLEM: In major depressive disorder what percentage of patients will suffer a recurrent episode?

SOLUTION: 90%

PROBLEM: Who sang breakfast at tiffany's the original?

SOLUTION:
Deep Blue Something