fob[9], fok[8], for[7], orf[7], frr[7], bok[6], kok[5], bor[5], rob[5], brr[5], kor[4], kro[4], okr[4], ork[4], rok[4], kwo[4], wok[4], rwo[3], wrr[3],
bo[4], ko[3], ok[3], or[2], ro[2],
