buhl[8], buhn[7], burg[7], grub[7], ruhn[5],
bub[7], bug[6], buh[6], hub[6], lug[5], gnu[4], gur[4], hur[4], ruh[4], uhr[4], nur[3], run[3],
hu[3], uh[3], ul[3], nu[2], ur[2],
