MeQSum dataset train/dev/test in "MeQSum" folder

Hello, I have few questions that i would like to know:
1) What kind of files should I put in "MeQSum" folder? (train.tsv, val.tsv, test.tsv?, Whould you like to release the files?)
2) In "preprocess_MeQSum.sh", what is the "LABEL_COLUMN" means?
3) When spliting MeQSum dataset into train/val/test, which methods did you split it and how?
