context: There is a better than even chance that Greg is yellow. It is highly likely that Lily is a swan. It is likely that Brian is a frog.
hypothesis: There is almost no chance that greg is yellow, and Brian is a frog.
valid_hypothesis: Chances are about even that greg is yellow, and Brian is a frog.
invalid_hypothesis: There is almost no chance that greg is yellow, and Brian is a frog.
hypothesis_assertion: Greg is yellow, and Brian is a frog.