UMR-Writer: A Web Application for Annotating Uniform Meaning Representations Jin Zhao author Nianwen Xue author Jens Van Gysel author Jinho D Choi author 2021-11 text Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing: System Demonstrations Heike Adel editor Shuming Shi editor Association for Computational Linguistics Online and Punta Cana, Dominican Republic conference publication zhao-etal-2021-umr 10.18653/v1/2021.emnlp-demo.19 https://aclanthology.org/2021.emnlp-demo.19/ 2021-11 160 167