context: It is probably the case that Brian is a frog. It is likely that Bernhard is yellow. We believe that Fred is in the cinema.
hypothesis: It is almost certain that either Bernhard is yellow, or Brian is a frog.
valid_hypothesis: Chances are about even that either Bernhard is yellow, or Brian is a frog.
invalid_hypothesis: It is almost certain that either Bernhard is yellow, or Brian is a frog.
hypothesis_assertion: Either Bernhard is yellow, or Brian is a frog.