context: We doubt that Brian is gray. It is probably the case that Sandra left the football. It is probably not the case that Julius is white.
hypothesis: It is highly unlikely that julius is white, and Brian is gray.
valid_hypothesis: It is highly unlikely that julius is white, and Brian is gray.
invalid_hypothesis: It is likely that julius is white, and Brian is gray.
hypothesis_assertion: Julius is white, and Brian is gray.