context: It is probably not the case that John dropped the apple. We doubt that Bernhard is a swan. It is probably not the case that Greg is yellow.
hypothesis: It is highly unlikely that greg is yellow, and Bernhard is a swan.
valid_hypothesis: It is highly unlikely that greg is yellow, and Bernhard is a swan.
invalid_hypothesis: It is almost certain that greg is yellow, and Bernhard is a swan.
hypothesis_assertion: Greg is yellow, and Bernhard is a swan.