context: It is almost certain that Brian is gray. It is unlikely that Greg is yellow. It is probable that Lily is white.
hypothesis: There is a better than even chance that either Greg is yellow, or Lily is white.
valid_hypothesis: There is a better than even chance that either Greg is yellow, or Lily is white.
invalid_hypothesis: There is almost no chance that either Greg is yellow, or Lily is white.
hypothesis_assertion: Either Greg is yellow, or Lily is white.