context: It is probable that Brian is a swan. It is certain that Lily is a frog. Chances are slight that Greg is a rhino.
hypothesis: It is unlikely that either Brian is a swan, or Greg is a rhino.
valid_hypothesis: It is probably the case that either Brian is a swan, or Greg is a rhino.
invalid_hypothesis: It is unlikely that either Brian is a swan, or Greg is a rhino.
hypothesis_assertion: Either Brian is a swan, or Greg is a rhino.