context: It is certain that John picked up the milk. There is a better than even chance that Julius is a rhino. It is almost certain that Sandra left the milk. It is unlikely that if either Julius is a rhino, or John picked up the milk, then Mary went to the kitchen. It is likely that if John picked up the milk, or Julius is a rhino, then Lily is white. We doubt that if either John picked up the milk, or Sandra left the milk, then Brian is a lion.
hypothesis: Chances are about even that julius is a rhino, and Mary went to the kitchen.
valid_hypothesis: It is impossible that julius is a rhino, and Mary went to the kitchen.
invalid_hypothesis: Chances are about even that julius is a rhino, and Mary went to the kitchen.
hypothesis_assertion: Julius is a rhino, and Mary went to the kitchen.