Coordination Annotation Extension in the Penn Tree Bank Jessica Ficler author Yoav Goldberg author 2016-08 text Proceedings of the 54th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) Katrin Erk editor Noah A Smith editor Association for Computational Linguistics Berlin, Germany conference publication ficler-goldberg-2016-coordination 10.18653/v1/P16-1079 https://aclanthology.org/P16-1079/ 2016-08 834 842