kuff[13], kufe[10], tuff[10], kote[8], tofu[8], fett[7], kett[7], teuf[7], kute[7], tote[5], oute[5], tuet[4], tute[4],
off[10], uff[9], oft[7], kot[7], ufo[7], tot[4], out[4], tue[3], tut[3],
et[2], tu[2],