context: It is probably not the case that Julius is a swan. We doubt that Greg is gray. It is improbable that Daniel dropped the milk. It is highly likely that if either Daniel dropped the milk, or Julius is a swan, then Sandra got the apple. It is unlikely that if Greg is gray, or Daniel dropped the milk, then John moved to the garden. There is little chance that if Daniel dropped the milk, or Julius is a swan, then Bernhard is a lion.
hypothesis: It is probably not the case that either Greg is gray, or Julius is a swan.
valid_hypothesis: It is probably not the case that either Greg is gray, or Julius is a swan.
invalid_hypothesis: There is a very good chance that either Greg is gray, or Julius is a swan.
hypothesis_assertion: Either Greg is gray, or Julius is a swan.