SUCCESS item does not imply that every score succeeded: evaluator
errors are recorded per score (see ScoreStatus), not on the item.
Values:
SUCCESS- The task function returned outputs and all evaluators ran on this item, even if some individual scores failed.FAILED- The task function raised an exception on this item, so no evaluators ran;error_reasonanderror_messageare populated.SKIPPED- The item was skipped and produced no result.