How much these costs are is a matter of debate.
But how far he has gone is a matter of debate.
Just how many will be needed is a matter of debate.
What the word means has been a matter of debate.
It is a matter of debate where he stopped for the night.
Just how rich is now a matter of hot debate.
But just how much pain is a matter of debate.
Why the change has taken place is a matter of debate.
How well that will pay off is a matter of debate.
Whether he has done so is a matter of debate.