... American Chapter of the Asso-ciation of Computational Linguistics (HLT-NAACL’06), pages 264–271, Stroudsburg, PA, USA.Kate Forbes-Riley, Diane Litman, Amruta Purandare,Mihai Rotaru, and Joel ... Understanding complex nat-ural language explanations in tutorial applications.In Proceedings of the Third Workshop on ScalableNatural Language Understanding, ScaNaLU ’06,pages 17–24.Lars Bo Larsen. ... 2006. The AT&T spoken language un-derstanding system. IEEE Transactions on Audio,Speech & Language Processing, 14(1):213–222.Pamela W. Jordan, Maxim Makatchev, and UmaraniPappuswamy. 2006....