context: There is a better than even chance that Lily is gray. We believe that Brian is a frog. It is probably not the case that Julius is a swan.
hypothesis: It is probably the case that brian is a frog, and Julius is a swan.
valid_hypothesis: It is unlikely that brian is a frog, and Julius is a swan.
invalid_hypothesis: It is probably the case that brian is a frog, and Julius is a swan.
hypothesis_assertion: Brian is a frog, and Julius is a swan.