context: Chances are about even that Fred left the football. There is a better than even chance that Julius is green. Chances are slight that Brian is yellow. There is a better than even chance that if Fred left the football, or Julius is green, then Bernhard is a lion. It is probable that if Julius is green, or Fred left the football, then John went to the hallway. There is almost no chance that if Brian is yellow, and Julius is green, then Greg is yellow.
hypothesis: It is certain that bernhard is a lion, or Brian is yellow.
valid_hypothesis: Chances are about even that bernhard is a lion, or Brian is yellow.
invalid_hypothesis: It is certain that bernhard is a lion, or Brian is yellow.
hypothesis_assertion: Bernhard is a lion, or Brian is yellow.