The nltk version is 3.0.0.

Hindi-Urdu Treebank (HUTB) Corpus is in CONLL format. The tree linearizer code (variant-generation-code.py) implements an algorithm that takes the dependency trees as input. The output that we get through this code is a set of counterfactual sentences with preverbal constituents re-ordered pre-verbally. The public version of the HUTB corpus is here: https://verbs.colorado.edu/hindiurdu/

Please cite the following work if you are using this code:
1. Ranjan, Sidharth, Rajakrishnan Rajkumar, and Sumeet Agarwal. "Locality and expectation effects in Hindi preverbal constituent ordering." Cognition 223 (2022): 104959.
2. Ranjan, Sidharth, et al. "Discourse Context Predictability Effects in Hindi Word Order." Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing. 2022.