furch[12], durch[9],
frug[8], ruch[8], fuhr[8], gurr[5], ruhr[5], guru[5], urdu[4],
fug[7], huf[7], duc[6], ruf[6], gur[4], hur[4], ruh[4], uhr[4], uhu[4], dur[3],
hu[3], uh[3], du[2], ud[2], ur[2],
