Chances are slight that Bernhard is a swan. It is almost certain that Mary left the milk. It is probably the case that Fred went to the hallway. It is unlikely that if either Bernhard is a swan, or Fred went to the hallway, then Lily is a lion. Chances are about even that if Bernhard is a swan, or Fred went to the hallway, then Brian is white. We doubt that if either Mary left the milk, or Fred went to the hallway, then Julius is yellow.
It is probably not the case that fred went to the hallway, and Brian is white.
It is probably not the case that fred went to the hallway, and Brian is white.
It is likely that fred went to the hallway, and Brian is white.
Fred went to the hallway, and Brian is white.