context: There is a very good chance that Winona is a mouse. Chances are slight that John dropped the apple. There is a very good chance that Fred is in the bedroom. There is a better than even chance that if John dropped the apple, and Fred is in the bedroom, then Greg is green. There is a better than even chance that if John dropped the apple, or Fred is in the bedroom, then Brian is white. It is impossible that if John dropped the apple, and Winona is a mouse, then Emily is a sheep.
hypothesis: It is impossible that emily is a sheep, and Fred is in the bedroom.
valid_hypothesis: It is impossible that emily is a sheep, and Fred is in the bedroom.
invalid_hypothesis: It is probable that emily is a sheep, and Fred is in the bedroom.
hypothesis_assertion: Emily is a sheep, and Fred is in the bedroom.