-al a-a a-b a-i a-t aaa aab aae aag aai aal aam aat ab- aba abb abe abg abi abl abm abt aea aeb aee aeg aei ael aem aet ag- aga agb age agg agi agl agm agt ai- aia aib aie aig aii ail aim ait al- ala alb ale alg ali all alm alt ama amb ame amg ami aml amm amt at- ata atb ate atg ati atl atm att baa bab bae bag bai bal bam bat bba bbb bbe bbg bbi bbl bbm bbt be- bea beb bee beg bei bel bem bet bga bgb bge bgg bgi bgl bgm bgt bi- bia bib bie big bii bil bim bit bla blb ble blg bli bll blm blt bma bmb bme bmg bmi bml bmm bmt bta btb bte btg bti btl btm btt eaa eab eae eag eai eal eam eat eba ebb ebe ebg ebi ebl ebm ebt eea eeb eee eeg eel eem eet ega egb ege egg egi egl egm egt eia eib eie eig eii eil eim eit ela elb ele elg eli ell elm elt em- ema emb eme emg emi eml emm emt eta etb ete etg eti etl etm ett gaa gab gae gag gai gal gam gat gba gbe gbg gbi gbl gbm gbt ge- gea geb gee geg gei gel gem get gga ggb ggg ggi ggm ggt gia gib gie gig gii gil gim git gla glb gle glg gli gll glm glt gma gmb gme gmg gmi gml gmm gmt gta gtb gte gtg gti gtl gtm gtt ia- iaa iab iae iag iai ial iam iat iba ibb ibe ibg ibi ibl ibm ibt ie- iea iee ieg iei iel iem iet iga igb ige igg igi igl igm igt iia iib iie iii iil iim iit il- ila ilb ile ilg ili ill ilm ilt im- ima imb ime img imi iml imm imt ita itb ite itg iti itl itm itt la- laa lab lae lag lai lal lam lat lba lbb lbe lbg lbi lbl lbm lbt lea leb lee leg lei lel lem let lga lgb lge lgg lgi lgl lgm lgt lia lib lie lig lii lil lim lit lla llb lle llg lli lll llm llt lma lmb lme lmg lmi lml lmm lmt lta ltb lte ltg lti ltl ltm ltt maa mab mae mag mai mal mam mat mba mbb mbe mbg mbi mbl mbm mbt mea meb mee meg mei mel mem met mga mgb mge mgi mgl mgm mgt mi- mia mib mie mig mii mil mim mit mla mlb mle mlg mli mll mlm mlt mma mmb mme mmg mmi mml mmm mmt mta mtb mte mtg mti mtl mtm mtt taa tab tae tag tai tal tam tat tba tbb tbe tbg tbi tbl tbm tbt te- tea teb tee teg tei tel tem tet tga tgb tge tgg tgi tgl tgm tgt tia tib tie tig tii til tim tit tla tle tlg tli tll tlm tlt tma tmb tme tmg tmi tml tmm tmt tta ttb tte ttg tti ttl ttm ttt