context: It is highly likely that Brian is a lion. It is highly likely that Lily is yellow. We doubt that Daniel took the milk. It is impossible that if either Brian is a lion, or Lily is yellow, then Bernhard is green. It is impossible that if either Lily is yellow, or Daniel took the milk, then Mary went to the garden. It is likely that if either Daniel took the milk, or Brian is a lion, then John put down the apple.
hypothesis: It is almost certain that mary went to the garden, or John put down the apple.
valid_hypothesis: Chances are about even that mary went to the garden, or John put down the apple.
invalid_hypothesis: It is almost certain that mary went to the garden, or John put down the apple.
hypothesis_assertion: Mary went to the garden, or John put down the apple.