None. If there was, it would no longer be a hole!
None! If there was dirt in it then it wouldn't be a hole.
None but the hole can be filled in with dirt with the given dimensions.
This is such an old one! Of course, there is no dirt in it because if there were, then there would be no hole!
A hole does not have dirt!
none there is no dirt in a hole
There's no dirt in it since it's a hole.
There is no dirt in a hole that is 3 feet deep and six inches in diameter.
It's a hole, the dirt has been taken out of it. So, none.
None. All the dirt is removed to make the hole!
None because its a hole. There is no dirt, it's a hole.
None, because it is a hole!
none. it is a hole afterall!