The format of train set?

[BUAAers]

@wszlong Hello Senior:
Can you please give five data of the train set before exeuce the ./datagen.sh for I don't understand the format of the following three lines well. Thanks for you work:

train_src_path = os.path.join(tmp_dir, train_src_name)
train_tgt_path_l2r = os.path.join(tmp_dir, train_tgt_name + ".l2r")
train_tgt_path_r2l = os.path.join(tmp_dir, train_tgt_name + ".r2l")

[Shajiu]

同样的问题，求助作者方方便给我这些数据的格式么？不用全都给，就是每一个文本的样例即可。万分感谢哈