Three men in overalls walk down a sidewalk in the midst of pedestrian traffic .
It is certain that three men who just got off work are walking on the sidewalk to their cars .
Chances are about even that three men who just got off work are walking on the sidewalk to their cars .
It is certain that three men who just got off work are walking on the sidewalk to their cars .
Three men who just got off work are walking on the sidewalk to their cars .