There are two men on a ladder one is at the top handing down to the other guy the number `` O '' as this what they do for a living .
It is improbable that the man on the latter is replacing letters on a sign .
There is a better than even chance that the man on the latter is replacing letters on a sign .
It is improbable that the man on the latter is replacing letters on a sign .
The man on the latter is replacing letters on a sign .