context: There is almost no chance that Brian is a swan. Chances are slight that Jeff moved to the office. It is almost certain that Greg is yellow.
hypothesis: There is almost no chance that brian is a swan, and Greg is yellow.
valid_hypothesis: There is almost no chance that brian is a swan, and Greg is yellow.
invalid_hypothesis: We believe that brian is a swan, and Greg is yellow.
hypothesis_assertion: Brian is a swan, and Greg is yellow.