context: It is probable that Brian is a lion. It is likely that John got the apple. It is almost certain that Fred is in the bedroom. It is probably the case that if Brian is a lion, and Fred is in the bedroom, then Mary went to the park. It is highly unlikely that if Brian is a lion, or Fred is in the bedroom, then Bernhard is a swan. It is improbable that if Brian is a lion, or Fred is in the bedroom, then Greg is gray.
hypothesis: It is improbable that fred is in the bedroom, and John got the apple.
valid_hypothesis: It is likely that fred is in the bedroom, and John got the apple.
invalid_hypothesis: It is improbable that fred is in the bedroom, and John got the apple.
hypothesis_assertion: Fred is in the bedroom, and John got the apple.