context: Chances are slight that Greg is yellow. There is almost no chance that Fred discarded the milk. It is certain that Mary took the football.
hypothesis: Chances are about even that greg is yellow, or Mary took the football.
valid_hypothesis: It is certain that greg is yellow, or Mary took the football.
invalid_hypothesis: Chances are about even that greg is yellow, or Mary took the football.
hypothesis_assertion: Greg is yellow, or Mary took the football.