Chances are about even that Brian is a lion. It is highly unlikely that John picked up the milk. We doubt that Lily is a rhino.
It is likely that john picked up the milk, or Lily is a rhino.
It is probably not the case that john picked up the milk, or Lily is a rhino.
It is likely that john picked up the milk, or Lily is a rhino.
John picked up the milk, or Lily is a rhino.