ster[5], tres[5], stew[5], sers[4], serw[4], wers[4],
ret[4], ter[4], set[4], tss[4], twe[4], wet[4], wte[4], ser[3], rew[3], wre[3], swe[3],
et[3], te[3], ts[3], er[2], re[2], es[2], se[2], ew[2], we[2],
