Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.

[EX Q]: Which khanates or instead tell me what was the Yuan's unofficial state religion?
[EX A]: What was the Yuan's unofficial state religion?

[EX Q]: What conditions must be met for a prescription for a controlled substance to be invalid no rather valid?
[EX A]: What conditions must be met for a prescription for a controlled substance to be valid?

[EX Q]: What year did Iqbal return Lahore or rather what year did Iqbal leave Lahore?
[EX A]:
What year did Iqbal leave Lahore?