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: How many er uh what do B cells help T cells produce?

Answer: disfluent


Question: Where was the packet-switched network first demonstrated?

Answer: proper


Question: What airport or wait park is close to John Lennon street?

Answer:
disfluent