buch[10], ruch[8], birr[6], huri[5], ruhr[5],
chi[7], ich[7], buh[6], hub[6], brr[5], ihr[4], hui[4], hur[4], ruh[4], uhr[4], irr[3],
bi[4], hi[3], hu[3], uh[3], ui[2], ur[2],