It is almost certain that Lily is yellow. It is highly unlikely that Sandra dropped the milk. Chances are about even that Julius is a rhino. We doubt that if either Lily is yellow, or Julius is a rhino, then John left the football. It is impossible that if either Lily is yellow, or Julius is a rhino, then Mary went to the garden. It is probably not the case that if Julius is a rhino, and Sandra dropped the milk, then Brian is a swan.
It is highly likely that either Mary went to the garden, or Sandra dropped the milk.
It is highly unlikely that either Mary went to the garden, or Sandra dropped the milk.
It is highly likely that either Mary went to the garden, or Sandra dropped the milk.
Either Mary went to the garden, or Sandra dropped the milk.