SemEval-2018 Task 5: Counting Events and Participants in the Long Tail Marten Postma author Filip Ilievski author Piek Vossen author 2018-06 text Proceedings of the 12th International Workshop on Semantic Evaluation Marianna Apidianaki editor Saif M Mohammad editor Jonathan May editor Ekaterina Shutova editor Steven Bethard editor Marine Carpuat editor Association for Computational Linguistics New Orleans, Louisiana conference publication postma-etal-2018-semeval 10.18653/v1/S18-1009 https://aclanthology.org/S18-1009/ 2018-06 70 80