A young man in a red striped shirt and blue jeans is bowling with a blue ball at a bowling alley .
It is almost certain that a man just knocked down all the pins at the bowling alley .
It is improbable that a man just knocked down all the pins at the bowling alley .
It is almost certain that a man just knocked down all the pins at the bowling alley .
A man just knocked down all the pins at the bowling alley .