context: It is almost certain that Julius is a frog. It is highly likely that Brian is a swan. It is probable that Greg is yellow.
hypothesis: There is a better than even chance that greg is yellow, and Brian is a swan.
valid_hypothesis: There is a better than even chance that greg is yellow, and Brian is a swan.
invalid_hypothesis: There is little chance that greg is yellow, and Brian is a swan.
hypothesis_assertion: Greg is yellow, and Brian is a swan.