It is probably not the case that John dropped the apple. There is a better than even chance that Yann got the milk there. It is almost certain that Julius is a frog. It is impossible that if Julius is a frog, or John dropped the apple, then Fred went to the hallway. Chances are about even that if Julius is a frog, or John dropped the apple, then Sandra left the football. It is certain that if Yann got the milk there, and Julius is a frog, then Brian is a frog.
It is certain that either Fred went to the hallway, or Sandra left the football.
Chances are about even that either Fred went to the hallway, or Sandra left the football.
It is certain that either Fred went to the hallway, or Sandra left the football.
Either Fred went to the hallway, or Sandra left the football.