context: It is almost certain that Greg is yellow. We doubt that Julius is a swan. Chances are slight that Bernhard is green.
hypothesis: It is probable that greg is yellow, and Bernhard is green.
valid_hypothesis: Chances are slight that greg is yellow, and Bernhard is green.
invalid_hypothesis: It is probable that greg is yellow, and Bernhard is green.
hypothesis_assertion: Greg is yellow, and Bernhard is green.