context: It is likely that Mary moved to the garden. We believe that Lily is gray. We believe that Julius is a frog.
hypothesis: It is impossible that mary moved to the garden, and Lily is gray.
valid_hypothesis: Chances are about even that mary moved to the garden, and Lily is gray.
invalid_hypothesis: It is impossible that mary moved to the garden, and Lily is gray.
hypothesis_assertion: Mary moved to the garden, and Lily is gray.