duff[10], tuff[10], feit[7], tief[7], duft[7], teuf[7], tide[4], deut[4], etui[4],
uff[9], fei[6], fit[6], die[3], eid[3], tue[3],
ei[2], et[2], ti[2], du[2], ud[2], ui[2], tu[2],