context: There is a very good chance that Greg is a lion. Chances are about even that Brian is a rhino. We believe that Jeff discarded the milk. There is almost no chance that if either Greg is a lion, or Jeff discarded the milk, then Julius is a swan. Chances are slight that if Jeff discarded the milk, or Brian is a rhino, then Lily is white. It is highly unlikely that if Greg is a lion, and Brian is a rhino, then Sandra left the milk.
hypothesis: There is a better than even chance that jeff discarded the milk, and Greg is a lion.
valid_hypothesis: There is a better than even chance that jeff discarded the milk, and Greg is a lion.
invalid_hypothesis: Chances are slight that jeff discarded the milk, and Greg is a lion.
hypothesis_assertion: Jeff discarded the milk, and Greg is a lion.