Key points are not available for this paper at this time.
Sungjin Lee, Qi Zhu, Ryuichi Takanobu, Zheng Zhang, Yaoqin Zhang, Xiang Li, Jinchao Li, Baolin Peng, Xiujun Li, Minlie Huang, Jianfeng Gao. Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics: System Demonstrations. 2019.
Lee et al. (Tue,) studied this question.