context: It is probably the case that Daniel left the milk. It is probably not the case that John got the apple. Chances are about even that Bill is in the cinema.
hypothesis: Chances are about even that either Bill is in the cinema, or John got the apple.
valid_hypothesis: Chances are about even that either Bill is in the cinema, or John got the apple.
invalid_hypothesis: It is impossible that either Bill is in the cinema, or John got the apple.
hypothesis_assertion: Either Bill is in the cinema, or John got the apple.