boundbox on;delay 0.5;moveto 2.0 back;delay 0.5;boundbox off;delete atomno=509;delete atomno=507;delete atomno=505;delete atomno=503;delete atomno=517;delete atomno=515;delete atomno=513;delete atomno=511;delete atomno=500;delete atomno =508;delete atomno=506;delete atomno=504;delete atomno=518;delete atomno=516;delete atomno=514;delete atomno=512;delete atomno=510;