burg[7], grub[7], buht[7], hubt[7], brut[6], trub[6], gurt[5], trug[5], hurt[5], ruht[5],
bug[6], buh[6], hub[6], gur[4], hur[4], ruh[4], uhr[4], gut[4], hut[4],
hu[3], uh[3], ur[2], tu[2],
