Clarification on anatomical meaning of label indices

Hi, thank you for releasing the pulmonary-tree-labeling dataset and code.

I have a question about the semantic meaning of the numeric labels in the released segmentation masks.

Could you please clarify the anatomical name corresponding to each numeric label? For example, is there an mapping such as:

1  = LB1
2  = LB2
...
18 = RB8
19 = trachea

Thank you!