16. The computer program product of claim 10 , wherein the computer readable program further causes the QA system to output the final answer to the superlative question at least by ranking candidate answers from the separate sets of one or more candidate answers for each metric in the plurality of metrics relative to one another and selecting a final answer based on results of the ranking.
16. The computer program product of claim 10 , wherein the computer readable program further causes the QA system to output the final answer to the superlative question at least by ranking candidate answers from the separate sets of one or more candidate answers for each metric in the plurality of metrics relative to one another and selecting a final answer based on results of the ranking. 17. The computer program product of claim 16 , wherein the ranking is performed based on a relative rank of the metrics in the plurality of metrics.