1:lot->Size(20,50,20) {new_lot}
2:new_lot->Subdiv(Y,1^,3^) {bottom | top}
3:bottom->Size(1^,1^,2^) {new_bottom}
4:new_bottom->Subdiv(Z,3^,1^) {back | front}
5:front->Size(1^,2^,1^) {new_front}
6:back->Subdiv(Z,1^,2^,1^) {back_part | back_center | back_part}
7:back_center->Size(2^,1^,1^) {new_back}
8:new_back->Replace(new_lot) : 0.7
  ->Replace(terminal) : 0.3
9:front->Replace(new_lot) : 0.2
  ->Replace(terminal) : 0.8
10:top->RY(40)
	Replace(terminal) : 0.1
  ->RY(30)
	Replace(terminal) : 0.1
  ->Replace(terminal) : 0.8
end