xco2r9
yco2
zco2r
0co2r9
1co2
m3o2
n3o2r
o3o2r9
p3o2
q3o2r
bup2r
cup2r9
dup2
eup2r
fup2r9
0kq2r9
1kq2
2kq2r
3kq2r9
4kq2
pbr2
qbr2r
rbr2r9
sbr2
tbr2r