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.

[EX Q]: In major depressive disorder what percentage of patients will suffer a recurrent episode?
[EX A]: 90%

[EX Q]: When was the pledge of allegiance started in schools?
[EX A]: October 12, 1892

[EX Q]: What is the meaning of khalid in arabic?
[EX A]:
eternal