Small boy dancing in a water sprinkler near a building .
It is certain that a small boy plays in a sprinkler on the hottest day of the year .
It is highly unlikely that a small boy plays in a sprinkler on the hottest day of the year .
It is certain that a small boy plays in a sprinkler on the hottest day of the year .
A small boy plays in a sprinkler on the hottest day of the year .