It is unlikely that Lily is a rhino. It is improbable that Bernhard is a swan. It is highly unlikely that Mary is in the garden. We doubt that if Bernhard is a swan, and Mary is in the garden, then John dropped the apple. It is highly unlikely that if Bernhard is a swan, or Mary is in the garden, then Julius is a lion. Chances are slight that if Lily is a rhino, or Mary is in the garden, then Brian is yellow.
There is little chance that either Brian is yellow, or Bernhard is a swan.
There is little chance that either Brian is yellow, or Bernhard is a swan.
It is highly likely that either Brian is yellow, or Bernhard is a swan.
Either Brian is yellow, or Bernhard is a swan.