TASK DEFINITION: Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
PROBLEM: What keeps the sensitivity of hormones at the same level, oh I mean the immune system?

SOLUTION: What keeps the sensitivity of the immune system at the same levels? 

PROBLEM: Who or no make that what increases with age?

SOLUTION: What increases with age?

PROBLEM: Stage 2 of the bill is where who the minister or member in charge of the bill will formally introduce it oh no who is in charge of the bill?

SOLUTION:
Stage 2 of the bill is where who is in charge of the bill?