lüft[13], lünt[10], loft[9], foul[9], font[8], flut[8], luft[8], tofu[8],
fon[7], oft[7], ufo[7], fun[6], lot[5], not[4], ton[4], out[4], nut[3], tun[3],
on[3], ul[3], nu[2], tu[2],
