East text detection

Hello Sir,

I am trying to text detection using East model. In the dataset provided in course It was mentioned that there are 4 coordinates followed by class in csv formatted (x1, x2, x3, x4, y1, y2, y3, y4, groundTruth::Language). But in some annotation there are more values as below.



Please help me out on what are the additional coordinates? Can I delete any? If so which one I can remove?