Annotating Coordination in the Penn Treebank Wolfgang Maier author Sandra Kübler author Erhard Hinrichs author Julia Krivanek author 2012-07 text Proceedings of the Sixth Linguistic Annotation Workshop Nancy Ide editor Fei Xia editor Association for Computational Linguistics Jeju, Republic of Korea conference publication maier-etal-2012-annotating https://aclanthology.org/W12-3624/ 2012-07 166 174