context: It is almost certain that Brian is a swan. It is unlikely that Lily is gray. It is certain that Julie moved to the park.
hypothesis: It is certain that brian is a swan, or Julie moved to the park.
valid_hypothesis: It is certain that brian is a swan, or Julie moved to the park.
invalid_hypothesis: It is probably not the case that brian is a swan, or Julie moved to the park.
hypothesis_assertion: Brian is a swan, or Julie moved to the park.