Classify the input text into either disfluent questions or proper questions. A disfluent question is a question that has some interruptions in it while framing. A proper question is the correct form of the question without any disfluency.
--------
Question: When was the Muslim Brotherhood founded?

Answer: proper


Question: What rituals did Kublai follow to destroy his image?

Answer: proper


Question: Who was the second I mean first Cetrum President?

Answer:
disfluent