context: There is a better than even chance that Mary dropped the milk. It is probable that Brian is a rhino. It is certain that Jessica is a sheep. It is probably the case that if either Mary dropped the milk, or Jessica is a sheep, then Lily is a lion. It is impossible that if either Mary dropped the milk, or Brian is a rhino, then John went to the garden. It is highly likely that if Jessica is a sheep, or Brian is a rhino, then Jeff discarded the apple.
hypothesis: It is impossible that jeff discarded the apple, and John went to the garden.
valid_hypothesis: It is impossible that jeff discarded the apple, and John went to the garden.
invalid_hypothesis: It is likely that jeff discarded the apple, and John went to the garden.
hypothesis_assertion: Jeff discarded the apple, and John went to the garden.