context: We doubt that Lily is green. It is probably the case that Greg is a rhino. Chances are slight that Brian is white. It is probable that if Greg is a rhino, and Lily is green, then Bernhard is yellow. It is probably the case that if either Lily is green, or Brian is white, then Jeff discarded the milk. It is probable that if Brian is white, and Lily is green, then John moved to the office.
hypothesis: There is almost no chance that either Bernhard is yellow, or Greg is a rhino.
valid_hypothesis: There is a better than even chance that either Bernhard is yellow, or Greg is a rhino.
invalid_hypothesis: There is almost no chance that either Bernhard is yellow, or Greg is a rhino.
hypothesis_assertion: Either Bernhard is yellow, or Greg is a rhino.