context: It is probable that Greg is a frog. It is probably not the case that Brian is white. There is a better than even chance that Jessica is a wolf. It is highly likely that if Brian is white, and Greg is a frog, then Daniel left the football. It is highly likely that if Greg is a frog, and Brian is white, then Mary went to the office. It is almost certain that if either Greg is a frog, or Jessica is a wolf, then Bernhard is white.
hypothesis: It is certain that either Bernhard is white, or Mary went to the office.
valid_hypothesis: Chances are about even that either Bernhard is white, or Mary went to the office.
invalid_hypothesis: It is certain that either Bernhard is white, or Mary went to the office.
hypothesis_assertion: Either Bernhard is white, or Mary went to the office.