@inproceedings{proqastructuralpromptbasedpretraining,
  title = {ProQA: Structural Prompt-based Pre-training for Unified Question Answering},
  author = {Anonymous},
  year = {2022},
  booktitle = {ACL ARR January 2022 1},
  url = {https://openreview.net/forum?id=g68eYTS0rzJ},
}