Paloma Moreda Hector Llorens Estela Saquete Manuel Palomar Two Proposals of a QA Answer Extraction Module Based on Semantic Roles. 174-184 2008 MICAI http://dx.doi.org/10.1007/978-3-540-88636-5_16 conf/micai/2008 db/conf/micai/micai2008.html#MoredaLSP08