7.5 -10 6  7.5 0 0  0
3 -10 15  1

cuboid 1 0 4  4 1 5
cuboid 2 0 0  3 1 4

cuboid 5 0 0  10 1 1
cuboid 5 0 4  10 1 5
cuboid 5 0 1  6 1 4
cuboid 9 0 1  10 1 4

cuboid 11 0 0  12 1 5
cuboid 12 0 3  13 1 4
cuboid 13 0 2  14 1 3
cuboid 14 0 3  15 1 4
cuboid 15 0 0  16 1 5

sphere 7.5 0.5 2.5  1

plane 0 0 -1  0 1 10