Arivu Chelvan K.M, Lakshmi K. “A Novel Heuristic Rules for Candidate Answer Sentence Generation in Machine Reading Comprehension System Using Linguistic Knowledge Document”. International Journal of Advanced Science and Technology 29, no. 06 (May 6, 2020): 2829 - 2841. Accessed September 20, 2021. https://sersc.org/journals/index.php/IJAST/article/view/13794.