context: It is highly likely that Brian is a rhino. There is a very good chance that Bernhard is a frog. We believe that Julius is a swan.
hypothesis: It is highly likely that either Julius is a swan, or Brian is a rhino.
valid_hypothesis: It is probably not the case that either Julius is a swan, or Brian is a rhino.
invalid_hypothesis: It is highly likely that either Julius is a swan, or Brian is a rhino.
hypothesis_assertion: Either Julius is a swan, or Brian is a rhino.