D. Leite, and L. Rino. Fourth Workshop in Information and Human Language Technology (TIL'06 Poster Section) in the Proceedings of International Joint Conference, 10th Ibero-American Artificial Intelligence Conference, 18th Brazilian Artificial Intelligence Symposium, 9th Brazilian Neural Networks Symposium, IBERAMIA-SBIA-SBRN, Ribeirão Preto, Brazil, ICMC-USP, (October 2006)