context: It is probable that Greg is a rhino. We believe that Jeff went to the kitchen. It is impossible that Daniel took the football. It is unlikely that if Daniel took the football, or Jeff went to the kitchen, then John discarded the apple. There is little chance that if either Greg is a rhino, or Daniel took the football, then Julius is yellow. It is unlikely that if either Daniel took the football, or Greg is a rhino, then Sandra got the milk.
hypothesis: It is almost certain that sandra got the milk, and Julius is yellow.
valid_hypothesis: There is almost no chance that sandra got the milk, and Julius is yellow.
invalid_hypothesis: It is almost certain that sandra got the milk, and Julius is yellow.
hypothesis_assertion: Sandra got the milk, and Julius is yellow.