oboe[8], orfe[8], ober[7], robe[7], freu[7], rufe[7], ufer[7], ufre[7], bure[6], euro[5], roue[5],
ufo[7], beo[6], bor[6], ruf[6], erb[5], reu[3], ure[3],
ob[5], er[2], re[2], ur[2],
