bono[6], obon[6], bron[6], boro[6], robo[6], snob[6], boso[6], nono[4], norn[4], noro[4], roso[4],
bon[5], bor[5], rob[5], non[3], ono[3], nor[3], oro[3], nos[3], son[3], oso[3], ros[3],
bo[4], no[2], on[2], or[2], ro[2], os[2],
