Given the task definition and input, reply with output. Convert a disfluent question to a proper question. 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.

Killer T cells, erm, cytokine TBF-B suppresses the activity of what cell, modes no no types?

Cytokine TBF-B suppresses the activity of what cell types?