nwr2o
owr2of
pwr2
qwr2o
rwr2of
cns2of
dns2
ens2o
fns2of
gns2
1dt2
2dt2o
3dt2of
4dt2
5dt2o
q4t2o
r4t2of
s4t2
t4t2o
u4t2of
fvu2of
gvu2
hvu2o
ivu2of
jvu2