context: It is probably the case that Bernhard is yellow. There is little chance that Daniel took the football. It is certain that Brian is a frog.
hypothesis: It is impossible that bernhard is yellow, or Brian is a frog.
valid_hypothesis: It is certain that bernhard is yellow, or Brian is a frog.
invalid_hypothesis: It is impossible that bernhard is yellow, or Brian is a frog.
hypothesis_assertion: Bernhard is yellow, or Brian is a frog.