... PA, USA.Diane Litman, Johanna Moore, Myroslava Dzikovska,and Elaine Farrow. 2009. Using natural lan-guage processing to analyze tutorial dialogue cor-pora across domains and modalities. In ... Makatchev, and UmaraniPappuswamy. 2006. Understanding complex nat-ural language explanations in tutorial applications. In Proceedings of the Third Workshop on ScalableNatural Language Understanding, ... September.Myroslava Dzikovska, Diana Bental, Johanna D.Moore, Natalie B. Steinhauser, Gwendolyn E.Campbell, Elaine Farrow, and Charles B. Callaway.201 0a. Intelligent tutoring with natural languagesupport...