context: It is highly likely that Julius is a rhino. It is highly likely that Greg is a swan. It is probably not the case that Winona is a wolf.
hypothesis: It is impossible that julius is a rhino, or Greg is a swan.
valid_hypothesis: It is certain that julius is a rhino, or Greg is a swan.
invalid_hypothesis: It is impossible that julius is a rhino, or Greg is a swan.
hypothesis_assertion: Julius is a rhino, or Greg is a swan.