-al a-a a-b a-t aaa aab aae aag aal aam aan aat ab- aba abb abe abg abl abm abn abt aea aeb aee aeg ael aem aen aet ag- aga agb age agg agl agm agn agt al- ala alb ale alg all alm aln alt ama amb ame amg aml amm amn amt an- ana anb ane ang anl anm ann ant at- ata atb ate atg atl atm atn att baa bab bae bag bal bam ban bat bba bbb bbe bbg bbl bbm bbn bbt be- bea beb bee beg bel bem ben bet bga bgb bge bgg bgl bgm bgn bgt bla blb ble blg bll blm bln blt bma bmb bme bmg bml bmm bmn bmt bna bnb bne bng bnl bnn bnt bta btb bte btg btl btm btn btt eaa eab eae eag eal eam ean eat eba ebb ebe ebg ebl ebm ebn ebt eea eeb eee eeg eel eem een eet ega egb ege egg egl egm egn egt ela elb ele elg ell elm eln elt em- ema emb eme emg eml emm emn emt en- ena enb ene eng enl enm enn ent eta etb ete etg etl etm etn ett gaa gab gae gag gal gam gan gat gba gbe gbg gbl gbm gbn gbt ge- gea geb gee geg gel gem gen get gga ggb ggg ggm ggn ggt gla glb gle glg gll glm gln glt gma gmb gme gmg gml gmm gmn gmt gna gnb gne gnl gnm gnn gnt gta gtb gte gtg gtl gtm gtn gtt la- laa lab lae lag lal lam lan lat lba lbb lbe lbg lbl lbm lbt lea leb lee leg lel lem len let lga lgb lge lgg lgl lgm lgn lgt lla llb lle llg lll llm lln llt lma lmb lme lmg lml lmm lmn lmt lna lnb lne lng lnl lnm lnn lnt lta ltb lte ltg ltl ltm ltt maa mab mae mag mal mam man mat mba mbb mbe mbg mbl mbm mbt mea meb mee meg mel mem men met mga mgb mge mgl mgm mgn mgt mla mlb mle mlg mll mlm mln mlt mma mmb mme mmg mml mmm mmn mmt mna mnb mne mng mnl mnm mnn mnt mta mtb mte mtg mtl mtm mtn mtt naa nab nae nag nal nam nan nat nba nbb nbe nbg nbl nbm nbn nbt ne- nea neb nee neg nel nem nen net nga ngb nge ngg ngl ngm ngn ngt nla nlb nle nlg nll nlm nln nlt nma nmb nme nmg nml nmm nmn nmt nna nnb nne nng nnl nnm nnn nnt nta ntb nte ntg ntm ntn ntt taa tab tae tag tal tam tan tat tba tbb tbe tbg tbl tbm tbn tbt te- tea teb tee teg tel tem ten tet tga tgb tge tgg tgl tgm tgn tgt tla tle tlg tll tlm tln tlt tma tmb tme tmg tml tmm tmn tmt tna tnb tne tng tnl tnm tnn tnt tta ttb tte ttg ttl ttm ttn ttt