2.6Mdatasets

[txy00001]

After I downloaded the 2.6m dataset, there is no distinction between manual labeling and machine labeling pictures, both are in the train folder, how do I know which one is manually labeled? At the same time, I want to delete all the pictures and json information that have two-handed interaction or appear with both hands, and only keep the pictures and json information with one hand, what should I do?