context: It is highly unlikely that Greg is a lion. It is probable that Brian is green. It is likely that Mary discarded the milk.
hypothesis: Chances are slight that mary discarded the milk, or Greg is a lion.
valid_hypothesis: It is likely that mary discarded the milk, or Greg is a lion.
invalid_hypothesis: Chances are slight that mary discarded the milk, or Greg is a lion.
hypothesis_assertion: Mary discarded the milk, or Greg is a lion.