-al a-a a-b a-i aaa aab aai aal aam aas aax ab- aba abb abi abl abm abs abx ai- aia aib aii ail aim ais aix al- ala alb ali all alm als alx ama amb ami aml amm ams amx as- asa asb asi asl asm ass asx ax- axa axi axl axm axs axx baa bab bai bal bam bas bax bba bbb bbi bbl bbm bbs bbx bi- bia bib bii bil bim bis bix bla blb bli bll blm bls blx bma bmb bmi bml bmm bms bmx bsa bsb bsi bsl bsm bss bsx bxb bxi bxl bxm bxx ia- iaa iab iai ial iam ias iba ibb ibi ibl ibm ibs ibx iia iib iii iil iim iis iix il- ila ilb ili ill ilm ils ilx im- ima imb imi iml imm ims imx is- isa isb isi isl ism iss ixi ixl la- laa lab lai lal lam las lax lba lbb lbi lbl lbm lbs lbx lia lib lii lil lim lis lix lla llb lli lll llm lls lma lmb lmi lml lmm lms lsa lsb lsi lsl lsm lss lxi lxx maa mab mai mal mam mas max mba mbb mbi mbl mbm mbs mbx mi- mia mib mii mil mim mis mix mla mlb mli mll mlm mls mlx mma mmb mmi mml mmm mms mmx msa msb msi msl msm mss msx mxa mxi mxl mxs saa sab sai sal sam sas sax sba sbb sbi sbl sbm sbs sbx sia sib sii sil sim sis six sla slb sli sll slm sls slx sma smb smi sml smm sms smx ss- ssa ssb ssi ssl ssm sss ssx sxi sxl sxm sxs xaa xal xam xas xbl xbx xia xii xis xix xla xlb xli xlm xls xma xmi xml xmm xms xmx xsa xsb xsi xsl xsm xss xxi xxl xxx