context: It is highly likely that Julius is gray. Chances are slight that Mary left the football. It is highly unlikely that Bernhard is a rhino.
hypothesis: There is a better than even chance that julius is gray, and Mary left the football.
valid_hypothesis: There is little chance that julius is gray, and Mary left the football.
invalid_hypothesis: There is a better than even chance that julius is gray, and Mary left the football.
hypothesis_assertion: Julius is gray, and Mary left the football.