grubb[10],
frug[8], fuhr[8], burg[7], grub[7], guru[5],
bub[7], fug[7], huf[7], bug[6], buh[6], hub[6], ruf[6], gur[4], hur[4], ruh[4], uhr[4], uhu[4],
hu[3], uh[3], ur[2],