It is improbable that Greg is gray. Chances are about even that Julius is yellow. Chances are about even that Brian is a frog. It is unlikely that if Julius is yellow, and Brian is a frog, then Bill went to the bedroom. It is likely that if Brian is a frog, or Greg is gray, then Daniel left the apple. It is highly unlikely that if Greg is gray, and Brian is a frog, then John took the football.
Chances are about even that either Daniel left the apple, or John took the football.
Chances are about even that either Daniel left the apple, or John took the football.
It is impossible that either Daniel left the apple, or John took the football.
Either Daniel left the apple, or John took the football.