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.

Hormones released during sleep support the interaction of T-cells and which or rather what species?

Hormones released during sleep support the interaction of T-cells and what species?