context: We doubt that Lily is green. Chances are slight that Brian is a lion. There is almost no chance that Greg is a swan.
hypothesis: We doubt that either Lily is green, or Greg is a swan.
valid_hypothesis: We doubt that either Lily is green, or Greg is a swan.
invalid_hypothesis: It is highly likely that either Lily is green, or Greg is a swan.
hypothesis_assertion: Either Lily is green, or Greg is a swan.