frug[8], fuhr[8], hufs[8], rufs[7], surf[7], fuss[7], grus[5], rhus[5], guss[5], huss[5], russ[4],
fug[7], huf[7], ruf[6], gur[4], hur[4], ruh[4], uhr[4], rus[3], sur[3], urs[3],
hu[3], uh[3], ur[2],
