p2r3
q2r3s
r2r3st
s2r3
t2r3s
ets3s
fts3st
gts3
hts3s
its3st
3jt3st
4jt3
5jt3s
6jt3st
7jt3
sau3
tau3s
uau3st
vau3
wau3s
h1u3s
i1u3st
j1u3
k1u3s
l1u3st