context: It is probable that Bernhard is gray. It is highly likely that Greg is green. It is highly likely that Lily is yellow. There is almost no chance that if Bernhard is gray, and Greg is green, then Brian is a swan. It is probably not the case that if Lily is yellow, or Greg is green, then John left the apple. It is certain that if Bernhard is gray, and Greg is green, then Mary got the milk.
hypothesis: There is little chance that either Bernhard is gray, or Brian is a swan.
valid_hypothesis: It is probably the case that either Bernhard is gray, or Brian is a swan.
invalid_hypothesis: There is little chance that either Bernhard is gray, or Brian is a swan.
hypothesis_assertion: Either Bernhard is gray, or Brian is a swan.