krą[8], rąk[8], erą[7], oku[6], kur[6], oru[5], eko[4], oko[4], ker[4], rek[4], kor[4], kro[4], okr[4], ork[4], rok[4], ero[3], oro[3],
ku[5], ko[3], ok[3], eo[2], er[2], re[2], or[2], ro[2],