Chances are about even that Lily is a lion. There is a very good chance that Sandra got the football. There is a very good chance that John went to the garden. We believe that if Sandra got the football, or John went to the garden, then Greg is a frog. It is certain that if Sandra got the football, and John went to the garden, then Julius is a swan. It is certain that if either Lily is a lion, or Sandra got the football, then Mary dropped the milk.
We believe that either John went to the garden, or Sandra got the football.
It is probably not the case that either John went to the garden, or Sandra got the football.
We believe that either John went to the garden, or Sandra got the football.
Either John went to the garden, or Sandra got the football.