What is the correct step after downloading the dataset?

[daeing]

After downloading the dataset, I tried run gen_hybrid_data.py to generate the tree txt according to the train_labels.txt. It shows the error below:

unknown word before { train_476 1 unknown word before { train_476 6 File "gen_hybrid_data.py", line 142, in parent = Tree('right', id=parents[-1].id + 1) IndexError: list index out of range

Can you write the correct steps in readme file?

[ChenSi521]

I get the same error; did you solve this problem?