dur2
eur2u
fur2us
gur2
hur2u
2ks2u
3ks2us
4ks2
5ks2u
6ks2us
rbt2us
sbt2
tbt2u
ubt2us
vbt2
g2t2
h2t2u
i2t2us
j2t2
k2t2u
5su2u
6su2us
7su2
8su2u
9su2us