Identifying left & right position relative to centerline

Hi all,

I have a dataset which represents the street curbside. Relative to centerline dataset, I am aiming to identfying the position of curb side (e.g. left right) I have used LeftRightSpatialCalculator to accomplish it. However, all the lines are getting Left as a relative position.

In the attachment, you can find the input data as well as my transformer.

Thanks in advance.