It is probably not the case that John went to the garden. It is impossible that Emily is a wolf. It is impossible that Lily is gray. We doubt that if Lily is gray, and Emily is a wolf, then Greg is gray. It is certain that if Emily is a wolf, and Lily is gray, then Mary dropped the milk. It is probably the case that if Emily is a wolf, or John went to the garden, then Julius is white.
It is impossible that either Lily is gray, or Greg is gray.
It is impossible that either Lily is gray, or Greg is gray.
We believe that either Lily is gray, or Greg is gray.
Either Lily is gray, or Greg is gray.