context: Chances are slight that Yann is bored. We doubt that Brian is gray. Chances are slight that Greg is a frog.
hypothesis: It is probably not the case that greg is a frog, or Brian is gray.
valid_hypothesis: It is probably not the case that greg is a frog, or Brian is gray.
invalid_hypothesis: It is probable that greg is a frog, or Brian is gray.
hypothesis_assertion: Greg is a frog, or Brian is gray.