It is impossible that Brian is a lion. We doubt that Bernhard is a swan. Chances are slight that Lily is white. It is probable that if Bernhard is a swan, or Lily is white, then Mary moved to the garden. It is improbable that if Bernhard is a swan, or Brian is a lion, then Fred went to the hallway. It is highly unlikely that if either Bernhard is a swan, or Brian is a lion, then Sumit is bored.
We believe that lily is white, or Fred went to the hallway.
Chances are slight that lily is white, or Fred went to the hallway.
We believe that lily is white, or Fred went to the hallway.
Lily is white, or Fred went to the hallway.