4 [[10, 1.5], [11, 1.5], [11, 2.5], [10, 2.5], [10, 1.5]],
5 [[20, 6], [21, 6], [21, 5], [20, 5], [20, 6]],
6 [[-9, 8], [30, 8], [30, 14], [-9, 14], [-9, 8]],
7 [[-9, 0], [15, 0], [15, -6], [-9, -6], [-9, 0]],
8 [[18, 0], [30, 0], [30, -6], [18, -6], [18, 0]]
10 "slot" : [[15, 0], [15, -6], [18, -6], [18, 0]]