osobo[7],
beto[7], boot[7], bose[6], boso[6], etos[5], oset[5], seto[5], stoo[5],
bet[6], bot[6], bee[5], eto[4], oto[4], set[4], sto[4], oso[3],
be[4], bo[4], et[3], te[3], ot[3], to[3], ts[3], ee[2], eo[2], es[2], se[2], os[2],
