context: There is a very good chance that Sandra left the apple. It is unlikely that Lily is a swan. It is certain that Brian is gray.
hypothesis: It is likely that sandra left the apple, and Lily is a swan.
valid_hypothesis: We doubt that sandra left the apple, and Lily is a swan.
invalid_hypothesis: It is likely that sandra left the apple, and Lily is a swan.
hypothesis_assertion: Sandra left the apple, and Lily is a swan.