-al a-a a-b a-t aaa aab aag aal aam aan aat ab- aba abb abg abl abm abn abt ag- aga agb agg agl agm agn agt al- ala alb alg all alm aln alt ama amb amg aml amm amn amt an- ana anb ang anl anm ann ant at- ata atb atg atl atm atn att baa bab bag bal bam ban bat bba bbb bbg bbl bbm bbn bbt bga bgb bgg bgl bgm bgn bgt bla blb blg bll blm bln blt bma bmb bmg bml bmm bmn bmt bna bnb bng bnl bnn bnt bta btb btg btl btm btn btt gaa gab gag gal gam gan gat gba gbg gbl gbm gbn gbt gga ggb ggg ggm ggn ggt gla glb glg gll glm gln glt gma gmb gmg gml gmm gmn gmt gna gnb gnl gnm gnn gnt gta gtb gtg gtl gtm gtn gtt la- laa lab lag lal lam lan lat lba lbb lbg lbl lbm lbt lga lgb lgg lgl lgm lgn lgt lla llb llg lll llm lln llt lma lmb lmg lml lmm lmn lmt lna lnb lng lnl lnm lnn lnt lta ltb ltg ltl ltm ltt maa mab mag mal mam man mat mba mbb mbg mbl mbm mbt mga mgb mgl mgm mgn mgt mla mlb mlg mll mlm mln mlt mma mmb mmg mml mmm mmn mmt mna mnb mng mnl mnm mnn mnt mta mtb mtg mtl mtm mtn mtt naa nab nag nal nam nan nat nba nbb nbg nbl nbm nbn nbt nga ngb ngg ngl ngm ngn ngt nla nlb nlg nll nlm nln nlt nma nmb nmg nml nmm nmn nmt nna nnb nng nnl nnm nnn nnt nta ntb ntg ntm ntn ntt taa tab tag tal tam tan tat tba tbb tbg tbl tbm tbn tbt tga tgb tgg tgl tgm tgn tgt tla tlg tll tlm tln tlt tma tmb tmg tml tmm tmn tmt tna tnb tng tnl tnm tnn tnt tta ttb ttg ttl ttm ttn ttt