context: It is probable that John left the milk. There is a better than even chance that Jeff went to the bedroom. Chances are slight that Greg is a swan.
hypothesis: There is almost no chance that john left the milk, or Greg is a swan.
valid_hypothesis: We believe that john left the milk, or Greg is a swan.
invalid_hypothesis: There is almost no chance that john left the milk, or Greg is a swan.
hypothesis_assertion: John left the milk, or Greg is a swan.