context: It is highly unlikely that John moved to the office. It is certain that Jeff dropped the apple. It is probably the case that Sandra grabbed the milk. It is highly unlikely that if John moved to the office, and Jeff dropped the apple, then Antoine is bored. There is a very good chance that if either Sandra grabbed the milk, or Jeff dropped the apple, then Bernhard is a lion. There is a better than even chance that if Sandra grabbed the milk, and Jeff dropped the apple, then Brian is a lion.
hypothesis: Chances are about even that sandra grabbed the milk, or Jeff dropped the apple.
valid_hypothesis: It is certain that sandra grabbed the milk, or Jeff dropped the apple.
invalid_hypothesis: Chances are about even that sandra grabbed the milk, or Jeff dropped the apple.
hypothesis_assertion: Sandra grabbed the milk, or Jeff dropped the apple.