@inproceedings{schuster2016enhanced,
 author = {Schuster, Sebastian and Manning, Christopher D.},
 booktitle = {Language Resources and Evaluation (LREC)},
 title = {Enhanced English Universal Dependencies: An Improved Representation for Natural Language Understanding Tasks},
 url = {https://nlp.stanford.edu/pubs/schuster2016enhanced.pdf},
 year = {2016}
}