ciot[6], cito[6], tico[6], cist[6], cios[5], sito[5], stoi[5],
cis[4], sic[4], soc[4], toi[4], sit[4], sto[4], osi[3], sio[3], soi[3],
ci[3], co[3], ot[3], to[3], ts[3], si[2], os[2],
