context: It is highly likely that Brian is a rhino. Chances are slight that Mary got the football. It is certain that Lily is gray.
hypothesis: There is a very good chance that either Brian is a rhino, or Mary got the football.
valid_hypothesis: There is a very good chance that either Brian is a rhino, or Mary got the football.
invalid_hypothesis: It is unlikely that either Brian is a rhino, or Mary got the football.
hypothesis_assertion: Either Brian is a rhino, or Mary got the football.