context: It is certain that John got the milk. There is almost no chance that Brian is a frog. There is a very good chance that Greg is yellow.
hypothesis: Chances are about even that john got the milk, or Brian is a frog.
valid_hypothesis: It is certain that john got the milk, or Brian is a frog.
invalid_hypothesis: Chances are about even that john got the milk, or Brian is a frog.
hypothesis_assertion: John got the milk, or Brian is a frog.