context: It is unlikely that Greg is gray. We believe that Lily is yellow. It is probable that Brian is a rhino.
hypothesis: We believe that greg is gray, or Brian is a rhino.
valid_hypothesis: We believe that greg is gray, or Brian is a rhino.
invalid_hypothesis: Chances are slight that greg is gray, or Brian is a rhino.
hypothesis_assertion: Greg is gray, or Brian is a rhino.