context: It is certain that Bill left the milk. There is almost no chance that Greg is yellow. There is a better than even chance that Brian is gray.
hypothesis: It is certain that greg is yellow, or Bill left the milk.
valid_hypothesis: It is certain that greg is yellow, or Bill left the milk.
invalid_hypothesis: It is probably not the case that greg is yellow, or Bill left the milk.
hypothesis_assertion: Greg is yellow, or Bill left the milk.