charades labels question

[GoodMan0]

Thanks for your work! I have a question about how do you get the Charades' files(train.csv, val.csv)? As for my training on Charades, the labels are in frame level, and I set a frame label by computing the frame id whether it fall into one label's duration. But I find frames' labels in train.csv are not follow this mothod(one frame be labelled as one action, but the frame id is not in this action's duration ). So I want to know if I misunderstand the training schedule on Charades. Thanks!