1 9 th International Conference on Sri Lanka Studies Full Paper Number 015 Some computational aspects of natural language understanding: A case study on Spoken Sinhala Chandima H. de Silva and Neelakshi Chandrasena Premawardhena Address for Correspondence Department of Statistics and Computer Science University of Kelaniya, Kelaniya, Sri Lanka. Email: chandima@kln.ac.lk Paper submitted for the 9 th International conference on Sri Lanka Studies, 28 th – 30 th November 2003, Matara, Sri Lanka