@article{doingnaturallanguageprocessingina,
  title = {Doing Natural Language Processing in A Natural Way: An NLP toolkit based on object-oriented knowledge base and multi-level grammar base},
  author = {Yu Guo},
  year = {2021},
  eprint = {2105.05227},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2105.05227v2},
}