context: We doubt that Julius is a swan. It is impossible that Brian is a rhino. Chances are slight that Antoine is hungry. Chances are slight that if either Brian is a rhino, or Antoine is hungry, then Daniel dropped the milk. There is a better than even chance that if Brian is a rhino, and Julius is a swan, then Jessica is a mouse. It is highly likely that if either Julius is a swan, or Brian is a rhino, then John went to the garden.
hypothesis: It is impossible that julius is a swan, and Daniel dropped the milk.
valid_hypothesis: It is impossible that julius is a swan, and Daniel dropped the milk.
invalid_hypothesis: There is a better than even chance that julius is a swan, and Daniel dropped the milk.
hypothesis_assertion: Julius is a swan, and Daniel dropped the milk.