context: We doubt that John dropped the milk. It is almost certain that Lily is white. There is a very good chance that Greg is a swan.
hypothesis: It is impossible that john dropped the milk, or Greg is a swan.
valid_hypothesis: There is a very good chance that john dropped the milk, or Greg is a swan.
invalid_hypothesis: It is impossible that john dropped the milk, or Greg is a swan.
hypothesis_assertion: John dropped the milk, or Greg is a swan.