cers[7], erst[4], rest[4], ster[4], rett[4], tret[4], stet[4], test[4],
cer[6], ces[6], sec[6], der[3], erd[3], red[3], des[3], ers[3], res[3], set[3],
er[2], re[2], es[2], et[2], st[2],
