context: There is a very good chance that Brian is a rhino. Chances are slight that John got the milk there. There is almost no chance that Greg is gray.
hypothesis: There is a very good chance that john got the milk there, or Brian is a rhino.
valid_hypothesis: There is a very good chance that john got the milk there, or Brian is a rhino.
invalid_hypothesis: We doubt that john got the milk there, or Brian is a rhino.
hypothesis_assertion: John got the milk there, or Brian is a rhino.