context: It is likely that Bill discarded the milk. Chances are about even that Jessica is a cat. There is a very good chance that Sandra got the apple.
hypothesis: It is impossible that either Sandra got the apple, or Bill discarded the milk.
valid_hypothesis: Chances are about even that either Sandra got the apple, or Bill discarded the milk.
invalid_hypothesis: It is impossible that either Sandra got the apple, or Bill discarded the milk.
hypothesis_assertion: Either Sandra got the apple, or Bill discarded the milk.