ossi[5], stoi[5], osts[5], sous[5], usos[5], outs[5], isst[4], sust[4],
ost[4], tos[4], sou[4], uso[4], out[4], iss[3], ist[3],
os[3], so[3], si[2], ti[2], st[2], ui[2], tu[2],