It is unlikely that Bernhard is a frog. It is probable that Julius is a swan. There is almost no chance that Bill went to the hallway.
It is probable that either Bernhard is a frog, or Bill went to the hallway.
It is unlikely that either Bernhard is a frog, or Bill went to the hallway.
It is probable that either Bernhard is a frog, or Bill went to the hallway.
Either Bernhard is a frog, or Bill went to the hallway.