Finding lines that are parallel and at a certain distance from each other

Hello FME community,

I have two feature classes with line type. I would like to find the lines in Feature Class 1 that are parallel to other lines in Feature Class 2 at a certain distance.

I calculate the angles of lines and with NeighborFinder I create a list of lines that are near but I don't know how to find the lines that have the same angles to feature class 1 (with about 10 degrees difference).