context: We believe that Julius is a swan. It is unlikely that Mary discarded the milk. There is a better than even chance that Lily is white.
hypothesis: It is probably not the case that julius is a swan, or Mary discarded the milk.
valid_hypothesis: There is a very good chance that julius is a swan, or Mary discarded the milk.
invalid_hypothesis: It is probably not the case that julius is a swan, or Mary discarded the milk.
hypothesis_assertion: Julius is a swan, or Mary discarded the milk.