It is certain that Brian is a lion. Chances are about even that Greg is yellow. It is unlikely that Jessica is a sheep. There is a very good chance that if Jessica is a sheep, or Brian is a lion, then Bernhard is yellow. It is probably not the case that if Greg is yellow, and Jessica is a sheep, then John left the apple. It is almost certain that if Jessica is a sheep, and Greg is yellow, then Mary went to the bedroom.
It is highly unlikely that either Bernhard is yellow, or Greg is yellow.
Chances are about even that either Bernhard is yellow, or Greg is yellow.
It is highly unlikely that either Bernhard is yellow, or Greg is yellow.
Either Bernhard is yellow, or Greg is yellow.