Ambigious Columns in AliEC Dataset

[Jary-lrj]

In AliEC dataset you have provided, there are four columns in AliEC.item:
user_id:token item_id:token timestamp:float scenario_id:token

Actually, in the original dataset, there are clk/noclk as ground truth labels, but here it seems not. I wonder whether there are missing columns in the processed dataset.