context: It is impossible that Brian is a frog. It is probable that John dropped the apple. It is probably the case that Daniel took the milk. It is probably not the case that if Brian is a frog, and Daniel took the milk, then Jessica is a wolf. There is a better than even chance that if John dropped the apple, or Daniel took the milk, then Greg is green. It is unlikely that if Daniel took the milk, or John dropped the apple, then Julius is white.
hypothesis: Chances are about even that either John dropped the apple, or Daniel took the milk.
valid_hypothesis: Chances are about even that either John dropped the apple, or Daniel took the milk.
invalid_hypothesis: It is almost certain that either John dropped the apple, or Daniel took the milk.
hypothesis_assertion: Either John dropped the apple, or Daniel took the milk.