context: It is probably not the case that Bernhard is a lion. There is a very good chance that Daniel grabbed the milk. It is highly likely that Mary is in the school. We believe that if Daniel grabbed the milk, or Mary is in the school, then John went to the hallway. Chances are slight that if either Daniel grabbed the milk, or Mary is in the school, then Greg is a lion. We doubt that if Daniel grabbed the milk, and Bernhard is a lion, then Lily is yellow.
hypothesis: There is little chance that either Lily is yellow, or Mary is in the school.
valid_hypothesis: It is highly likely that either Lily is yellow, or Mary is in the school.
invalid_hypothesis: There is little chance that either Lily is yellow, or Mary is in the school.
hypothesis_assertion: Either Lily is yellow, or Mary is in the school.