context: There is a very good chance that Lily is gray. It is impossible that Brian is a swan. We believe that Daniel got the football.
hypothesis: We believe that either Brian is a swan, or Daniel got the football.
valid_hypothesis: We believe that either Brian is a swan, or Daniel got the football.
invalid_hypothesis: It is highly unlikely that either Brian is a swan, or Daniel got the football.
hypothesis_assertion: Either Brian is a swan, or Daniel got the football.