context: It is impossible that John went to the garden. It is certain that Lily is gray. It is certain that Brian is a frog.
hypothesis: It is probably not the case that brian is a frog, or John went to the garden.
valid_hypothesis: It is certain that brian is a frog, or John went to the garden.
invalid_hypothesis: It is probably not the case that brian is a frog, or John went to the garden.
hypothesis_assertion: Brian is a frog, or John went to the garden.