context: There is a very good chance that Greg is a lion. It is impossible that Mary put down the milk. It is improbable that Brian is a rhino.
hypothesis: It is probably not the case that mary put down the milk, or Greg is a lion.
valid_hypothesis: There is a very good chance that mary put down the milk, or Greg is a lion.
invalid_hypothesis: It is probably not the case that mary put down the milk, or Greg is a lion.
hypothesis_assertion: Mary put down the milk, or Greg is a lion.