context: It is probably not the case that Sandra grabbed the milk. There is a very good chance that John moved to the garden. We believe that Greg is a swan.
hypothesis: Chances are slight that sandra grabbed the milk, or Greg is a swan.
valid_hypothesis: There is a very good chance that sandra grabbed the milk, or Greg is a swan.
invalid_hypothesis: Chances are slight that sandra grabbed the milk, or Greg is a swan.
hypothesis_assertion: Sandra grabbed the milk, or Greg is a swan.