A little boy is standing on the street while a man in overalls is working on a stone wall .
It is impossible that a boy is taking a break from his apprenticeship as a stone mason .
It is impossible that a boy is taking a break from his apprenticeship as a stone mason .
Chances are about even that a boy is taking a break from his apprenticeship as a stone mason .
A boy is taking a break from his apprenticeship as a stone mason .