context: There is a very good chance that Brian is a frog. It is highly likely that Greg is a swan. It is impossible that Daniel took the apple.
hypothesis: It is probably not the case that either Greg is a swan, or Brian is a frog.
valid_hypothesis: It is probably not the case that either Greg is a swan, or Brian is a frog.
invalid_hypothesis: It is highly likely that either Greg is a swan, or Brian is a frog.
hypothesis_assertion: Either Greg is a swan, or Brian is a frog.