MLLIB logistic regression, the input data format is

1 x1, y1 x2, y2 x3: y3...
0 x11: y11 x22: y22 x33: y33...

This format, the first number is the label and I would like to ask what the x1 and X2,

If according to the format write under test data is how to write?

Thank you for your reply,