context: It is probably the case that Julius is green. It is certain that Brian is a swan. There is almost no chance that Bernhard is a frog.
hypothesis: It is unlikely that julius is green, and Brian is a swan.
valid_hypothesis: It is likely that julius is green, and Brian is a swan.
invalid_hypothesis: It is unlikely that julius is green, and Brian is a swan.
hypothesis_assertion: Julius is green, and Brian is a swan.