Chances are about even that Mary went to the office. It is impossible that Greg is a lion. It is probably the case that Jessica is a wolf. It is highly unlikely that if either Mary went to the office, or Greg is a lion, then Brian is white. We doubt that if Mary went to the office, and Jessica is a wolf, then Bernhard is gray. Chances are slight that if Greg is a lion, and Jessica is a wolf, then John moved to the garden.
It is highly unlikely that either John moved to the garden, or Bernhard is gray.
It is highly unlikely that either John moved to the garden, or Bernhard is gray.
It is almost certain that either John moved to the garden, or Bernhard is gray.
Either John moved to the garden, or Bernhard is gray.