context: It is probably not the case that John moved to the garden. It is highly unlikely that Brian is a swan. It is impossible that Daniel dropped the milk. There is almost no chance that if Daniel dropped the milk, or John moved to the garden, then Lily is white. We believe that if Brian is a swan, or Daniel dropped the milk, then Julius is a swan. It is likely that if either John moved to the garden, or Daniel dropped the milk, then Mary went to the hallway.
hypothesis: It is impossible that lily is white, and Julius is a swan.
valid_hypothesis: It is impossible that lily is white, and Julius is a swan.
invalid_hypothesis: It is likely that lily is white, and Julius is a swan.
hypothesis_assertion: Lily is white, and Julius is a swan.