context: It is certain that Greg is a lion. It is highly likely that John grabbed the apple. There is almost no chance that Sandra took the football.
hypothesis: It is unlikely that either Sandra took the football, or John grabbed the apple.
valid_hypothesis: It is highly likely that either Sandra took the football, or John grabbed the apple.
invalid_hypothesis: It is unlikely that either Sandra took the football, or John grabbed the apple.
hypothesis_assertion: Either Sandra took the football, or John grabbed the apple.