context: It is unlikely that Bill discarded the milk. It is probable that Brian is a swan. There is a very good chance that Daniel left the milk.
hypothesis: It is impossible that either Daniel left the milk, or Bill discarded the milk.
valid_hypothesis: It is probable that either Daniel left the milk, or Bill discarded the milk.
invalid_hypothesis: It is impossible that either Daniel left the milk, or Bill discarded the milk.
hypothesis_assertion: Either Daniel left the milk, or Bill discarded the milk.