light_source{ <0.8, 0.8, 0.9> 
              color White
              looks_like{ sphere{ <0,0,0>,0.5 
                                  texture{ pigment{ color White }
                                           finish { ambient 0.8   
                                                    diffuse 0.2
                                                    phong 1     }
                                         } // end of texture
                                } // end of sphere
                        } //end of looks_like
            } //end of light_source