Proceedings of the 5th Workshop on Structured Prediction for NLP (SPNLP 2021) Zornitsa Kozareva editor Sujith Ravi editor Andreas Vlachos editor Priyanka Agrawal editor André Martins editor 2021-08 Association for Computational Linguistics Online text conference publication spnlp-2021-structured https://aclanthology.org/2021.spnlp-1.0/