ostoi[6],
etos[5], oset[5], seto[5], sito[5], stoi[5], stoo[5], esie[4], osie[4],
eto[4], toi[4], oto[4], set[4], sit[4], sto[4], eis[3], sie[3], osi[3], sio[3], soi[3], oso[3],
et[3], te[3], ot[3], to[3], ts[3], ee[2], eo[2], es[2], se[2], si[2], os[2],
