gder[7], merg[7], peem[6], derm[6], perm[6], erem[5],
gem[6], dem[5], erg[5], mee[4], der[4], red[4], mer[4], rem[4], per[4], rep[4],
de[3], em[3], me[3], pe[3], ee[2], er[2], re[2],
