There is a better than even chance that John went to the hallway. We believe that Lily is a rhino. It is probably the case that Sumit is thirsty. It is probably the case that if either Lily is a rhino, or Sumit is thirsty, then Greg is gray. We doubt that if Sumit is thirsty, and Lily is a rhino, then Jeff moved to the office. It is probably not the case that if Sumit is thirsty, and John went to the hallway, then Brian is green.
We believe that either Sumit is thirsty, or Greg is gray.
We believe that either Sumit is thirsty, or Greg is gray.
Chances are slight that either Sumit is thirsty, or Greg is gray.
Either Sumit is thirsty, or Greg is gray.