context: It is almost certain that Mary discarded the milk. It is certain that Bernhard is a swan. It is probably not the case that Greg is green.
hypothesis: It is impossible that bernhard is a swan, or Mary discarded the milk.
valid_hypothesis: It is certain that bernhard is a swan, or Mary discarded the milk.
invalid_hypothesis: It is impossible that bernhard is a swan, or Mary discarded the milk.
hypothesis_assertion: Bernhard is a swan, or Mary discarded the milk.