norii[5], ronin[5], norio[5], norno[5],
inni[4], inio[4], nono[4], inro[4], iron[4], nori[4], orni[4], roni[4], norn[4], noro[4],
ino[3], oni[3], non[3], ono[3], inr[3], roi[3], nor[3], oro[3],
ii[2], in[2], ni[2], no[2], on[2], or[2], ro[2],
