context: We believe that Lily is a rhino. It is probable that Sandra got the apple. We doubt that Greg is yellow.
hypothesis: It is almost certain that sandra got the apple, and Lily is a rhino.
valid_hypothesis: Chances are about even that sandra got the apple, and Lily is a rhino.
invalid_hypothesis: It is almost certain that sandra got the apple, and Lily is a rhino.
hypothesis_assertion: Sandra got the apple, and Lily is a rhino.