context: There is almost no chance that Bernhard is a swan. It is probable that John took the apple. It is likely that Mary went to the hallway. We doubt that if Bernhard is a swan, or Mary went to the hallway, then Daniel grabbed the milk. There is almost no chance that if Bernhard is a swan, or Mary went to the hallway, then Julius is green. We doubt that if either Bernhard is a swan, or John took the apple, then Brian is a frog.
hypothesis: There is almost no chance that either Brian is a frog, or John took the apple.
valid_hypothesis: There is a better than even chance that either Brian is a frog, or John took the apple.
invalid_hypothesis: There is almost no chance that either Brian is a frog, or John took the apple.
hypothesis_assertion: Either Brian is a frog, or John took the apple.