It is probably the case that Mary went to the hallway. It is likely that Brian is a swan. Chances are about even that Bernhard is a lion.
It is certain that either Mary went to the hallway, or Brian is a swan.
Chances are about even that either Mary went to the hallway, or Brian is a swan.
It is certain that either Mary went to the hallway, or Brian is a swan.
Either Mary went to the hallway, or Brian is a swan.