Chances are about even that Lily is a swan. It is likely that Greg is white. It is highly unlikely that Brian is a rhino.
It is certain that either Brian is a rhino, or Lily is a swan.
Chances are about even that either Brian is a rhino, or Lily is a swan.
It is certain that either Brian is a rhino, or Lily is a swan.
Either Brian is a rhino, or Lily is a swan.