context: It is impossible that Lily is white. We doubt that Greg is green. We doubt that Bernhard is a swan.
hypothesis: It is almost certain that greg is green, and Bernhard is a swan.
valid_hypothesis: It is highly unlikely that greg is green, and Bernhard is a swan.
invalid_hypothesis: It is almost certain that greg is green, and Bernhard is a swan.
hypothesis_assertion: Greg is green, and Bernhard is a swan.