stoa[5], auto[5], outs[5], saut[4], stau[4], taus[4],
tao[4], ost[4], tos[4], sou[4], uso[4], out[4], ast[3], aus[3], sau[3], tau[3],
os[3], so[3], as[2], st[2], au[2], tu[2],
