-al a-a a-b a-i a-t aaa aab aag aai aal aan aas aat ab- aba abb abg abi abl abn abs abt ag- aga agb agg agi agl agn ags agt ai- aia aib aig aii ail ain ais ait al- ala alb alg ali all aln als alt an- ana anb ang ani anl ann ans ant as- asa asb asg asi asl asn ass ast at- ata atb atg ati atl atn ats att baa bab bag bai bal ban bas bat bba bbb bbg bbi bbl bbn bbs bbt bga bgb bgg bgi bgl bgn bgs bgt bi- bia bib big bii bil bin bis bit bla blb blg bli bll bln bls blt bna bnb bng bni bnl bnn bns bnt bsa bsb bsg bsi bsl bsn bss bst bta btb btg bti btl btn bts btt gaa gab gag gai gal gan gas gat gba gbg gbi gbl gbn gbs gbt gga ggb ggg ggi ggn ggs ggt gia gib gig gii gil gin gis git gla glb glg gli gll gln gls glt gna gnb gni gnl gnn gns gnt gsa gsb gsg gsi gsl gsn gss gst gta gtb gtg gti gtl gtn gts gtt ia- iaa iab iag iai ial ian ias iat iba ibb ibg ibi ibl ibn ibs ibt iga igb igg igi igl ign igs igt iia iib iii iil iin iis iit il- ila ilb ilg ili ill iln ils ilt in- ina inb ing ini inl inn ins int is- isa isb isg isi isl isn iss ist ita itb itg iti itl itn its itt la- laa lab lag lai lal lan las lat lba lbb lbg lbi lbl lbs lbt lga lgb lgg lgi lgl lgn lgs lgt lia lib lig lii lil lin lis lit lla llb llg lli lll lln lls llt lna lnb lng lni lnl lnn lns lnt lsa lsb lsg lsi lsl lsn lss lst lta ltb ltg lti ltl lts ltt n-i naa nab nag nai nal nan nas nat nba nbb nbg nbi nbl nbn nbs nbt nga ngb ngg ngi ngl ngn ngs ngt nia nib nig nii nil nin nis nit nla nlb nlg nli nll nln nls nlt nna nnb nng nni nnl nnn nns nnt nsa nsb nsg nsi nsl nsn nss nst nta ntb ntg nti ntn nts ntt saa sab sag sai sal san sas sat sba sbb sbg sbi sbl sbn sbs sbt sga sgb sgg sgi sgl sgn sgs sgt sia sib sig sii sil sin sis sit sla slb slg sli sll sln sls slt sna snb sng sni snl snn sns snt ss- ssa ssb ssg ssi ssl ssn sss sst sta stb stg sti stl stn sts stt taa tab tag tai tal tan tas tat tba tbb tbg tbi tbl tbn tbs tbt tga tgb tgg tgi tgl tgn tgs tgt tia tib tig tii til tin tis tit tla tlg tli tll tln tls tlt tna tnb tng tni tnl tnn tns tnt tsa tsb tsg tsi tsl tsn tss tst tta ttb ttg tti ttl ttn tts ttt