A parade of women in blue costumes walk down the street .
Chances are about even that a group of women wearing blue costumes walk down the street in a Christmas parade .
Chances are about even that a group of women wearing blue costumes walk down the street in a Christmas parade .
It is impossible that a group of women wearing blue costumes walk down the street in a Christmas parade .
A group of women wearing blue costumes walk down the street in a Christmas parade .