context: Chances are slight that Sandra took the football. We doubt that Bernhard is green. It is probable that John dropped the apple.
hypothesis: It is certain that either Bernhard is green, or Sandra took the football.
valid_hypothesis: It is probably not the case that either Bernhard is green, or Sandra took the football.
invalid_hypothesis: It is certain that either Bernhard is green, or Sandra took the football.
hypothesis_assertion: Either Bernhard is green, or Sandra took the football.