context: There is little chance that Sandra left the football. Chances are slight that Fred went to the hallway. We doubt that Jason is bored. It is almost certain that if either Jason is bored, or Sandra left the football, then Brian is a frog. There is a better than even chance that if Jason is bored, or Fred went to the hallway, then Bernhard is gray. It is probably the case that if either Sandra left the football, or Jason is bored, then John got the milk.
hypothesis: It is highly likely that bernhard is gray, or Brian is a frog.
valid_hypothesis: It is probably not the case that bernhard is gray, or Brian is a frog.
invalid_hypothesis: It is highly likely that bernhard is gray, or Brian is a frog.
hypothesis_assertion: Bernhard is gray, or Brian is a frog.