kuff[13], muff[12], duff[10], tuff[10], kumt[9], doku[8], tofu[8], duft[7],
off[10], uff[9], oft[7], kot[7], ufo[7], dom[6], mud[5], mut[5], tod[4], duo[4], out[4],
um[4], do[3], od[3], du[2], ud[2], tu[2],
