bono[6], obon[6], bron[6], boro[6], robo[6], noro[4], nowo[4], wron[4],
bon[5], bor[5], rob[5], ono[3], nor[3], oro[3], won[3], owo[3], rwo[3],
bo[4], no[2], on[2], or[2], ro[2],
