width
<width - int>

height
<height - int>

sphere
<center - 3 doubles>
<radius - 1 double>
<color - 3 doubles>
<reflectivity - 1 double>

plane
<normal - 3 doubles>
<D - 1 double>
<color - 3 doubles>
<color2 (checker) - 3 doubles>
<reflectivity - 1 double>

box
<ll - 3 doubles>
<ur - 3 doubles>
<color - 3 doubles>
<reflectivity - 1 double>

light
<center - 3 doubles>
<color - 3 doubles>