context: We believe that John went to the kitchen. It is likely that Lily is a rhino. We believe that Greg is gray.
hypothesis: It is highly unlikely that lily is a rhino, and John went to the kitchen.
valid_hypothesis: Chances are about even that lily is a rhino, and John went to the kitchen.
invalid_hypothesis: It is highly unlikely that lily is a rhino, and John went to the kitchen.
hypothesis_assertion: Lily is a rhino, and John went to the kitchen.