fok[8], for[7], orf[7], dok[5], kod[5], odr[4], ord[4], rod[4], kor[4], kro[4], okr[4], ork[4], rok[4], kwo[4], wok[4], rwo[3],
do[3], od[3], ko[3], ok[3], or[2], ro[2],
