Given the excellent results posted by the best systems and an adequate performance attained even by some entry-level system, we believe that the process of factoid question answering is now fairly well understood (Harabagiu et al., 2002;Hovy et al., 2000;Prager at al., 2001, Wu et al., 2003.
to a factoid question, an analytical question has a virtually unlimited variety of syntactic forms with only a loose connection between their syntax and the expected answer.