baca[7], caba[7], bace[7], bece[7], bana[6], bean[6], acan[5], cena[5],
cab[6], bee[5], ban[5], ben[5], cna[4], cen[4], cne[4], ana[3],
ba[4], be[4], ce[3], aa[2], ee[2], na[2], en[2],
