pointlight light1 void 0 -200 0 1 0 0
pointlight light2 void 0 0 -200 0 1 0
pointlight light3 void 0 200 0  0 0 1
pointlight light4 void 0 0 200  1 1 0
pointlight light5 void 0 0 0    0 1 1

lambertian white void 1.0 1.0 1.0

plane p1 white 1000 0 0 -1 0 0
sphere s1 white 500 -200 -10 100