context: Chances are about even that Julius is a rhino. Chances are slight that Greg is gray. It is unlikely that Brian is a frog.
hypothesis: It is highly unlikely that julius is a rhino, and Greg is gray.
valid_hypothesis: It is highly unlikely that julius is a rhino, and Greg is gray.
invalid_hypothesis: It is highly likely that julius is a rhino, and Greg is gray.
hypothesis_assertion: Julius is a rhino, and Greg is gray.