nico[5], cios[5], cors[5], inro[4], iron[4], nori[4], orni[4], roni[4], nosi[4], osin[4], sino[4], rosi[4], ossi[4],
cni[4], nic[4], noc[4], cis[4], sic[4], soc[4], ino[3], oni[3], inr[3], roi[3], nor[3], osi[3], sio[3], soi[3], nos[3], son[3], sir[3], ros[3], sos[3],
ci[3], co[3], in[2], ni[2], no[2], on[2], or[2], ro[2], si[2], os[2],
