context: We believe that Greg is a swan. There is a better than even chance that Bernhard is a rhino. It is probably not the case that Jeff went to the kitchen. There is a better than even chance that if either Jeff went to the kitchen, or Greg is a swan, then Sumit is thirsty. Chances are slight that if either Bernhard is a rhino, or Greg is a swan, then John left the football. It is almost certain that if Jeff went to the kitchen, or Greg is a swan, then Lily is a lion.
hypothesis: There is a better than even chance that john left the football, and Greg is a swan.
valid_hypothesis: There is almost no chance that john left the football, and Greg is a swan.
invalid_hypothesis: There is a better than even chance that john left the football, and Greg is a swan.
hypothesis_assertion: John left the football, and Greg is a swan.