-al -er a-a a-b a-i aaa aab aae aai aal aam aar aax ab- aba abb abe abi abl abm abr abx aea aeb aee aei ael aem aer aex ai- aia aib aie aii ail aim air aix al- ala alb ale ali all alm alr alx ama amb ame ami aml amm amr amx ar- ara arb are ari arl arm arr arx ax- axa axe axi axl axm axr axx baa bab bae bai bal bam bar bax bba bbb bbe bbi bbl bbm bbr bbx be- bea beb bee bei bel bem ber bex bi- bia bib bie bii bil bim bir bix bla blb ble bli bll blm blr blx bma bmb bme bmi bml bmm bmr bmx bra brb bre bri brl brm brr brx bxb bxi bxl bxm bxx eaa eab eae eai eal eam ear eax eba ebb ebe ebi ebl ebm ebr ebx eea eeb eee eel eem eer eex eia eib eie eii eil eim eir eix ela elb ele eli ell elm elr elx em- ema emb eme emi eml emm emr emx era erb ere eri erl erm err ex- exa exe exi exl exr exx ia- iaa iab iae iai ial iam iar iba ibb ibe ibi ibl ibm ibr ibx ie- iea iee iei iel iem ier iex iia iib iie iii iil iim iir iix il- ila ilb ile ili ill ilm ilr ilx im- ima imb ime imi iml imm imx ir- ira irb ire iri irl irm irr irx ixe ixi ixl la- laa lab lae lai lal lam lar lax lba lbb lbe lbi lbl lbm lbr lbx lea leb lee lei lel lem ler lex lia lib lie lii lil lim lir lix lla llb lle lli lll llm llr lma lmb lme lmi lml lmm lmr lra lrb lri lrm lrr lxi lxr lxx m-r maa mab mae mai mal mam mar max mba mbb mbe mbi mbl mbm mbr mbx mea meb mee mei mel mem mer mex mi- mia mib mie mii mil mim mir mix mla mlb mle mli mll mlm mlr mlx mma mmb mme mmi mml mmm mmr mmx mra mrb mre mri mrl mrm mrr mrx mxa mxi mxl mxr ra- raa rab rae rai ral ram rar rax rba rbb rbe rbi rbl rbm rbr rbx re- rea reb ree rei rel rem rer rex ria rib rie rii ril rim rir rix rla rle rli rll rlm rlr rma rmb rme rmi rml rmm rmr rmx rra rrb rri rrl rrm rrr rxr xaa xal xam xar xbe xbl xbr xbx xee xel xem xer xex xia xie xii xix xla xlb xli xlm xlr xma xmi xml xmm xmr xmx xrx xxi xxl xxx