A man in yellow and a man in green boating down a river on an overcast day .
It is impossible that a man in yellow and a man in green boating down a muddy river on an overcast day .
Chances are about even that a man in yellow and a man in green boating down a muddy river on an overcast day .
It is impossible that a man in yellow and a man in green boating down a muddy river on an overcast day .
A man in yellow and a man in green boating down a muddy river on an overcast day .