-al a-a a-b a-i aaa aab aae aai aal aam aax ab- aba abb abe abi abl abm abx aea aeb aee aei ael aem aex ai- aia aib aie aii ail aim aix al- ala alb ale ali all alm alx ama amb ame ami aml amm amx ax- axa axe axi axl axm axx baa bab bae bai bal bam bax bba bbb bbe bbi bbl bbm bbx be- bea beb bee bei bel bem bex bi- bia bib bie bii bil bim bix bla blb ble bli bll blm blx bma bmb bme bmi bml bmm bmx bxb bxi bxl bxm bxx eaa eab eae eai eal eam eax eba ebb ebe ebi ebl ebm ebx eea eeb eee eel eem eex eia eib eie eii eil eim eix ela elb ele eli ell elm elx em- ema emb eme emi eml emm emx ex- exa exe exi exl exx ia- iaa iab iae iai ial iam iba ibb ibe ibi ibl ibm ibx ie- iea iee iei iel iem iex iia iib iie iii iil iim iix il- ila ilb ile ili ill ilm ilx im- ima imb ime imi iml imm imx ixe ixi ixl la- laa lab lae lai lal lam lax lba lbb lbe lbi lbl lbm lbx lea leb lee lei lel lem lex lia lib lie lii lil lim lix lla llb lle lli lll llm lma lmb lme lmi lml lmm lxi lxx maa mab mae mai mal mam max mba mbb mbe mbi mbl mbm mbx mea meb mee mei mel mem mex mi- mia mib mie mii mil mim mix mla mlb mle mli mll mlm mlx mma mmb mme mmi mml mmm mmx mxa mxi mxl xaa xal xam xbe xbl xbx xee xel xem xex xia xie xii xix xla xlb xli xlm xma xmi xml xmm xmx xxi xxl xxx