context: It is probable that Bernhard is white. It is probably the case that Mary left the milk. There is a better than even chance that Brian is green.
hypothesis: It is certain that either Bernhard is white, or Mary left the milk.
valid_hypothesis: Chances are about even that either Bernhard is white, or Mary left the milk.
invalid_hypothesis: It is certain that either Bernhard is white, or Mary left the milk.
hypothesis_assertion: Either Bernhard is white, or Mary left the milk.