QUALIFIER: Question Answering by Lexical Fabric and External Resources Hui Yang author Tat-Seng Chua author 2003-04 text 10th Conference of the European Chapter of the Association for Computational Linguistics Ann Copestake editor Jan Hajič editor Association for Computational Linguistics Budapest, Hungary conference publication yang-chua-2003-qualifier https://aclanthology.org/E03-1070/ 2003-04