context: It is probable that Brian is a rhino. It is probably not the case that Greg is a lion. It is certain that John got the milk. There is a better than even chance that if John got the milk, or Greg is a lion, then Daniel left the apple. Chances are slight that if John got the milk, and Brian is a rhino, then Mary went to the garden. It is almost certain that if Brian is a rhino, or John got the milk, then Lily is a frog.
hypothesis: It is highly unlikely that either Greg is a lion, or Daniel left the apple.
valid_hypothesis: There is a better than even chance that either Greg is a lion, or Daniel left the apple.
invalid_hypothesis: It is highly unlikely that either Greg is a lion, or Daniel left the apple.
hypothesis_assertion: Either Greg is a lion, or Daniel left the apple.