Splitting Complex Temporal Questions for Question Answering Systems E Saquete author P Martínez-Barco author R Muñoz author J L Vicedo author 2004-07 text Proceedings of the 42nd Annual Meeting of the Association for Computational Linguistics (ACL-04) Barcelona, Spain conference publication saquete-etal-2004-splitting 10.3115/1218955.1219027 https://aclanthology.org/P04-1072/ 2004-07 566 573