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Please predict whether this patent is acceptable.PATENT ABSTRACT: Aspects of the disclosure are directed to natural language processing or natural language understanding and may include a determination of a probabilistic or probability-based ranking of potential results. For example, natural language input may be received such as speech or text. Natural language processing may be performed to determine one or more potential results for the input. A pairwise classifier may be used to determine a score for element pairs in the potential results. Based on the scores, probabilities for the element pairs may be determined. Based on the probabilities for the element pairs, further probabilities may be determined such as by estimating the probability that a current result is the top rank or best choice. Based on the estimated probabilities that the current result is the top rank or best choice, a ranking may be determined, which may form the basis for natural language understanding output.