context: It is probably not the case that Brian is white. It is highly unlikely that John got the milk. There is a very good chance that Jessica is a wolf. It is unlikely that if John got the milk, and Brian is white, then Mary dropped the milk. There is almost no chance that if Jessica is a wolf, or Brian is white, then Lily is a rhino. Chances are slight that if John got the milk, and Jessica is a wolf, then Greg is green.
hypothesis: It is impossible that jessica is a wolf, and Mary dropped the milk.
valid_hypothesis: It is impossible that jessica is a wolf, and Mary dropped the milk.
invalid_hypothesis: It is probably the case that jessica is a wolf, and Mary dropped the milk.
hypothesis_assertion: Jessica is a wolf, and Mary dropped the milk.