context: We doubt that Lily is a frog. We believe that Mary discarded the milk. It is certain that Brian is a lion.
hypothesis: There is a very good chance that mary discarded the milk, and Lily is a frog.
valid_hypothesis: It is improbable that mary discarded the milk, and Lily is a frog.
invalid_hypothesis: There is a very good chance that mary discarded the milk, and Lily is a frog.
hypothesis_assertion: Mary discarded the milk, and Lily is a frog.