atu[6], aut[6], tau[6], uta[6], out[6], uto[6], stu[6], ust[6], aua[5], sou[5], ata[4], tao[4], oto[4], sto[4], aaa[3], asa[3], osa[3], oso[3],
tu[5], ut[5], au[4], su[4], at[3], ta[3], ot[3], to[3], ts[3], aa[2], as[2], os[2],
