context: It is unlikely that Bernhard is a swan. Chances are slight that Fred moved to the cinema. It is improbable that John left the football.
hypothesis: There is a very good chance that fred moved to the cinema, and Bernhard is a swan.
valid_hypothesis: There is almost no chance that fred moved to the cinema, and Bernhard is a swan.
invalid_hypothesis: There is a very good chance that fred moved to the cinema, and Bernhard is a swan.
hypothesis_assertion: Fred moved to the cinema, and Bernhard is a swan.