context: It is unlikely that Greg is green. There is little chance that Sandra got the football. It is probably not the case that John grabbed the apple.
hypothesis: There is almost no chance that sandra got the football, and Greg is green.
valid_hypothesis: There is almost no chance that sandra got the football, and Greg is green.
invalid_hypothesis: Chances are about even that sandra got the football, and Greg is green.
hypothesis_assertion: Sandra got the football, and Greg is green.