derm[6], perm[6], psem[6], spem[6], dres[5], pers[5],
dem[5], der[4], red[4], mer[4], rem[4], per[4], rep[4], des[4], mes[4], sem[4], sep[4], ser[3],
de[3], em[3], me[3], pe[3], er[2], re[2], es[2], se[2],
