context: It is highly likely that Julius is white. Chances are slight that Greg is a swan. It is probably not the case that Bernhard is a frog. We believe that if Greg is a swan, and Bernhard is a frog, then Sandra grabbed the milk. There is almost no chance that if Bernhard is a frog, and Julius is white, then Bill is in the school. We believe that if Greg is a swan, and Julius is white, then Brian is gray.
hypothesis: There is almost no chance that julius is white, and Sandra grabbed the milk.
valid_hypothesis: There is almost no chance that julius is white, and Sandra grabbed the milk.
invalid_hypothesis: It is probable that julius is white, and Sandra grabbed the milk.
hypothesis_assertion: Julius is white, and Sandra grabbed the milk.