context: It is probably not the case that Bernhard is yellow. It is highly unlikely that Lily is green. We believe that Julius is a swan.
hypothesis: We doubt that julius is a swan, and Bernhard is yellow.
valid_hypothesis: We doubt that julius is a swan, and Bernhard is yellow.
invalid_hypothesis: It is certain that julius is a swan, and Bernhard is yellow.
hypothesis_assertion: Julius is a swan, and Bernhard is yellow.