The Answer Validation Exercise (AVE) 2006 is aimed at evaluating systems able to decide whether the responses of a Question Answering (QA) system are correct or not. Since most of the questions and answers contain entities, the use of a textual entailment relation between entities is studied here for the task of Answer Validation. We present some experiments concluding that the entity entailment relation is a feature that improves a SVM based classifier close to the best result in AVE 2006.
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