-al a-a a-b a-i a-t aaa aab aag aai aak aal aas aat ab- aba abb abg abi abk abl abs abt ag- aga agb agg agi agk agl ags agt ai- aia aib aig aii aik ail ais ait aka akb akg aki akk akl aks al- ala alb alg ali alk all als alt as- asa asb asg asi ask asl ass ast at- ata atb atg ati atl ats att baa bab bag bai bak bal bas bat bba bbb bbg bbi bbk bbl bbs bbt bga bgb bgg bgi bgk bgl bgs bgt bi- bia bib big bii bik bil bis bit bka bkb bkg bkk bkl bks bkt bla blb blg bli blk bll bls blt bsa bsb bsg bsi bsk bsl bss bst bta btb btg bti btk btl bts btt gaa gab gag gai gak gal gas gat gba gbg gbi gbk gbl gbs gbt gga ggb ggg ggi ggs ggt gia gib gig gii gik gil gis git gka gkb gks gkt gla glb glg gli glk gll gls glt gsa gsb gsg gsi gsk gsl gss gst gta gtb gtg gti gtk gtl gts gtt ia- iaa iab iag iai ial ias iat iba ibb ibg ibi ibk ibl ibs ibt iga igb igg igi igk igl igs igt iia iib iii iil iis iit ika ikb iki ikk ikl iks ikt il- ila ilb ilg ili ilk ill ils ilt is- isa isb isg isi isk isl iss ist ita itb itg iti itk itl its itt k-t ka- kaa kab kag kai kak kal kas kat kba kbb kbi kbk kbl kbs kga kgb kgi kgl kgs kia kib kig kii kik kil kis kit kkb kki kkk kkl kks kkt kl- kla klb klg kli kls klt ksa ksb ksg ksi ksk ksl kss kst kta ktb ktg ktk ktl kts ktt la- laa lab lag lai lak lal las lat lba lbb lbg lbi lbk lbl lbs lbt lga lgb lgg lgi lgk lgl lgs lgt lia lib lig lii lik lil lis lit lka lkb lkg lkl lks lkt lla llb llg lli llk lll lls llt lsa lsb lsg lsi lsk lsl lss lst lta ltb ltg lti ltk ltl lts ltt saa sab sag sai sak sal sas sat sba sbb sbg sbi sbk sbl sbs sbt sga sgb sgg sgi sgk sgl sgs sgt sia sib sig sii sik sil sis sit sk- ska skb skg ski skk skl sks skt sla slb slg sli slk sll sls slt ss- ssa ssb ssg ssi ssk ssl sss sst sta stb stg sti stk stl sts stt taa tab tag tai tak tal tas tat tba tbb tbg tbi tbk tbl tbs tbt tga tgb tgg tgi tgk tgl tgs tgt tia tib tig tii tik til tis tit tka tkb tkg tkk tkl tks tkt tla tlg tli tlk tll tls tlt tsa tsb tsg tsi tsk tsl tss tst tta ttb ttg tti ttk ttl tts ttt