Question Answering over Structured Data: an Entailment-Based Approach to Question Analysis Matteo Negri author Milen Kouylekov author 2009-09 text Proceedings of the International Conference RANLP-2009 Galia Angelova editor Ruslan Mitkov editor Association for Computational Linguistics Borovets, Bulgaria conference publication negri-kouylekov-2009-question https://aclanthology.org/R09-1056/ 2009-09 305 311