context: We believe that Jessica is a mouse. It is probable that Julius is yellow. There is a better than even chance that Brian is a swan.
hypothesis: Chances are about even that either Julius is yellow, or Brian is a swan.
valid_hypothesis: Chances are about even that either Julius is yellow, or Brian is a swan.
invalid_hypothesis: It is almost certain that either Julius is yellow, or Brian is a swan.
hypothesis_assertion: Either Julius is yellow, or Brian is a swan.