The treebank is licensed under the Creative Commons License Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)

The sentences itselves were taken from the website https://resources.allsetlearning.com/chinese/grammar/Main_Page with the following license when downloaded (April, 28th of 2023) Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0) (link https://creativecommons.org/licenses/by-nc-sa/3.0/)

The complete license text is available at:
https://creativecommons.org/licenses/by-nc-sa/3.0/