context: It is probable that Brian is gray. It is highly likely that Daniel grabbed the milk. It is certain that Lily is a lion. We believe that if Lily is a lion, or Brian is gray, then Fred is in the school. It is probably not the case that if Daniel grabbed the milk, or Brian is gray, then Mary put down the apple. Chances are slight that if Daniel grabbed the milk, or Brian is gray, then Jessica is a sheep.
hypothesis: It is probably not the case that either Lily is a lion, or Fred is in the school.
valid_hypothesis: It is probably not the case that either Lily is a lion, or Fred is in the school.
invalid_hypothesis: It is almost certain that either Lily is a lion, or Fred is in the school.
hypothesis_assertion: Either Lily is a lion, or Fred is in the school.