context: It is likely that Bernhard is gray. Chances are about even that Mary left the apple. There is almost no chance that Julius is a swan.
hypothesis: It is impossible that either Bernhard is gray, or Julius is a swan.
valid_hypothesis: It is likely that either Bernhard is gray, or Julius is a swan.
invalid_hypothesis: It is impossible that either Bernhard is gray, or Julius is a swan.
hypothesis_assertion: Either Bernhard is gray, or Julius is a swan.