@inproceedings{bijl-de-vroe-etal-2021-modality,
    title = "Modality and Negation in Event Extraction",
    author = "Bijl de Vroe, Sander  and
      Guillou, Liane  and
      Stanojevi{\'c}, Milo{\v{s}}  and
      McKenna, Nick  and
      Steedman, Mark",
    editor = {H{\"u}rriyeto{\u{g}}lu, Ali},
    booktitle = "Proceedings of the 4th Workshop on Challenges and Applications of Automated Extraction of Socio-political Events from Text (CASE 2021)",
    month = aug,
    year = "2021",
    address = "Online",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/2021.case-1.6/",
    doi = "10.18653/v1/2021.case-1.6",
    pages = "31--42"
}