restrict DNA
cartoons off
wireframe 50
color green
pause
define set1 *.O?'
define set2 *.OP?
define set3 *C.N? or *D.N?
select set1
cpk 100
color yellow
pause
cpk off
color red
select set2
cpk 100
color green
pause
cpk off
color purple
select set3
cpk 100
color black