context: It is impossible that John discarded the milk. We doubt that Brian is yellow. It is probably the case that Lily is white.
hypothesis: It is impossible that john discarded the milk, and Brian is yellow.
valid_hypothesis: It is impossible that john discarded the milk, and Brian is yellow.
invalid_hypothesis: It is probably the case that john discarded the milk, and Brian is yellow.
hypothesis_assertion: John discarded the milk, and Brian is yellow.