8 -2 0  -4 0 0  0
0 -20 1  1
sphere 0 -3 0  1
cuboid -0.2 -2.8 -0.5  0.2 -3.2 -5

plane 10 0 0  -1 0 0
plane -10 0 0  1 0 0
plane 0 10 0  0 -1 0
plane 0 0 10  0 0 -1
plane 0 0 -5  0 0 1

cuboid -10 4 -5  -9.5 -2 8
cuboid -9.5 3 1.5  -9.0 2.7 1.3
sphere -8.8 2.85 1.45  0.3