context: It is almost certain that Bernhard is a lion. There is little chance that Brian is gray. It is highly unlikely that Greg is yellow.
hypothesis: There is little chance that greg is yellow, or Brian is gray.
valid_hypothesis: There is little chance that greg is yellow, or Brian is gray.
invalid_hypothesis: It is probably the case that greg is yellow, or Brian is gray.
hypothesis_assertion: Greg is yellow, or Brian is gray.