Towards the Annotation of Penn TreeBank with Information Structure Bernd Bohnet author Alicia Burga author Leo Wanner author 2013-10 text Proceedings of the Sixth International Joint Conference on Natural Language Processing Ruslan Mitkov editor Jong C Park editor Asian Federation of Natural Language Processing Nagoya, Japan conference publication bohnet-etal-2013-towards https://aclanthology.org/I13-1178/ 2013-10 1250 1256