nico[5], cios[5], nosi[4], osin[4], sino[4],
cni[4], nic[4], noc[4], cis[4], sic[4], soc[4], ino[3], oni[3], ono[3], osi[3], sio[3], soi[3], nos[3], son[3], oso[3],
ci[3], co[3], in[2], ni[2], no[2], on[2], si[2], os[2],
