context: It is almost certain that Daniel dropped the apple. There is a better than even chance that Brian is gray. There is a better than even chance that Greg is a frog. We believe that if either Brian is gray, or Daniel dropped the apple, then John discarded the milk. It is certain that if either Brian is gray, or Daniel dropped the apple, then Bernhard is gray. There is almost no chance that if Brian is gray, and Greg is a frog, then Mary went to the hallway.
hypothesis: It is improbable that either Greg is a frog, or Mary went to the hallway.
valid_hypothesis: There is a better than even chance that either Greg is a frog, or Mary went to the hallway.
invalid_hypothesis: It is improbable that either Greg is a frog, or Mary went to the hallway.
hypothesis_assertion: Either Greg is a frog, or Mary went to the hallway.