Three men are wearing safety yellow jackets and hard hats on the sight of a construction project ; one is in a hole and the other two are looking at the man standing in the hole .
There is a very good chance that there are three men in hard hats standing on the same horizontal plane .
It is impossible that there are three men in hard hats standing on the same horizontal plane .
There is a very good chance that there are three men in hard hats standing on the same horizontal plane .
There are three men in hard hats standing on the same horizontal plane .