context: It is certain that Brian is a lion. There is almost no chance that Greg is yellow. There is a better than even chance that Julius is white.
hypothesis: It is improbable that either Greg is yellow, or Julius is white.
valid_hypothesis: There is a better than even chance that either Greg is yellow, or Julius is white.
invalid_hypothesis: It is improbable that either Greg is yellow, or Julius is white.
hypothesis_assertion: Either Greg is yellow, or Julius is white.