context: It is probable that Brian is white. It is probably not the case that Daniel dropped the milk. It is highly unlikely that Bill is in the school. It is improbable that if Daniel dropped the milk, and Bill is in the school, then Bernhard is yellow. There is almost no chance that if either Bill is in the school, or Daniel dropped the milk, then Mary went to the garden. It is certain that if Bill is in the school, or Brian is white, then Julius is a rhino.
hypothesis: We believe that brian is white, and Bernhard is yellow.
valid_hypothesis: It is impossible that brian is white, and Bernhard is yellow.
invalid_hypothesis: We believe that brian is white, and Bernhard is yellow.
hypothesis_assertion: Brian is white, and Bernhard is yellow.