z2o2k
02o2ki
12o2
22o2k
32o2ki
otp2ki
ptp2
qtp2k
rtp2ki
stp2
dkq2
ekq2k
fkq2ki
gkq2
hkq2k
2ar2k
3ar2ki
4ar2
5ar2k
6ar2ki
r1r2ki
s1r2
t1r2k
u1r2ki
v1r2