context: It is impossible that Bernhard is gray. We doubt that John took the milk. It is likely that Lily is green.
hypothesis: We doubt that either Bernhard is gray, or John took the milk.
valid_hypothesis: We doubt that either Bernhard is gray, or John took the milk.
invalid_hypothesis: It is certain that either Bernhard is gray, or John took the milk.
hypothesis_assertion: Either Bernhard is gray, or John took the milk.