-al a-a a-b a-t a-z aaa aab aae aag aal aat aaz ab- aba abb abe abg abl abt abz aea aeb aee aeg ael aet aez ag- aga agb age agg agl agt agz al- ala alb ale alg all alt alz at- ata atb ate atg atl att atz az- aza azb aze azg azt azz baa bab bae bag bal bat baz bba bbb bbe bbg bbl bbt be- bea beb bee beg bel bet bez bga bgb bge bgg bgl bgt bgz bla blb ble blg bll blt blz bta btb bte btg btl btt btz bza bze bzz eaa eab eae eag eal eat eaz eba ebb ebe ebg ebl ebt eea eeb eee eeg eel eet ega egb ege egg egl egt ela elb ele elg ell elt elz eta etb ete etg etl ett etz eze ezz gaa gab gae gag gal gat gaz gba gbe gbg gbl gbt gbz ge- gea geb gee geg gel get gez gga ggb ggg ggt ggz gla glb gle glg gll glt glz gta gtb gte gtg gtl gtt gza la- laa lab lae lag lal lat laz lba lbb lbe lbg lbl lbt lea leb lee leg lel let lez lga lgb lge lgg lgl lgt lla llb lle llg lll llt llz lta ltb lte ltg ltl ltt ltz taa tab tae tag tal tat taz tba tbb tbe tbg tbl tbt tbz te- tea teb tee teg tel tet tez tga tgb tge tgg tgl tgt tgz tla tle tlg tll tlt tlz tta ttb tte ttg ttl ttt tza tze z-g zaa zab zag zat zaz zbb zbl zbt zea zeb zee zel zet zez zgb zgg zla zlt zta zte ztl zzt zzz