You will be given a definition of a task first, then some input of the task.
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.

When rock formations are found on top of a fault that have not been cut, then formations no they must be older or younger than the fault?
Output:
When rock formations are found on top of a fault that have not been cut, then they must be older or younger than the fault?