context: Chances are about even that Jessica is a wolf. There is little chance that Julius is white. We doubt that Brian is a frog. It is almost certain that if either Brian is a frog, or Julius is white, then Mary went to the office. It is probably the case that if Brian is a frog, and Julius is white, then John left the apple. It is probable that if Julius is white, or Jessica is a wolf, then Bernhard is gray.
hypothesis: It is impossible that bernhard is gray, or Brian is a frog.
valid_hypothesis: Chances are about even that bernhard is gray, or Brian is a frog.
invalid_hypothesis: It is impossible that bernhard is gray, or Brian is a frog.
hypothesis_assertion: Bernhard is gray, or Brian is a frog.