nipo[5], pion[5], inio[4], znoi[4],
nip[4], pin[4], pni[4], poi[4], zip[4], ino[3], oni[3], zin[3], zon[3],
pi[3], op[3], po[3], ii[2], in[2], ni[2], no[2], on[2], oz[2],
