erce[5], esce[5], serc[5], wece[5], eser[4], serw[4], wers[4],
cer[4], ces[4], cew[4], ser[3], ewe[3], rew[3], wre[3], swe[3],
ce[3], ee[2], er[2], re[2], es[2], se[2], ew[2], we[2],
