context: It is unlikely that Brian is gray. It is probable that Bernhard is a frog. It is impossible that Winona is a cat.
hypothesis: It is almost certain that brian is gray, and Winona is a cat.
valid_hypothesis: It is impossible that brian is gray, and Winona is a cat.
invalid_hypothesis: It is almost certain that brian is gray, and Winona is a cat.
hypothesis_assertion: Brian is gray, and Winona is a cat.