perek[7], koper[7], krepo[7], perko[7], poker[7], opeer[6],
epok[6], krep[6], kopr[6], krop[6], erek[5], erko[5], kore[5], orek[5], oper[5], pero[5], oere[4],
kop[5], eko[4], ker[4], rek[4], kor[4], kro[4], okr[4], ork[4], rok[4], per[4], rep[4], por[4], pro[4], rop[4], ero[3],
ko[3], ok[3], pe[3], op[3], po[3], ee[2], eo[2], er[2], re[2], or[2], ro[2],
