-al a-a a-b a-t aaa aab aae aag aal aat aau ab- aba abb abe abg abl abt abu aea aeb aee aeg ael aet aeu ag- aga agb age agg agl agt agu al- ala alb ale alg all alt alu at- ata atb ate atg atl att atu au- aua aub aue aug aul aut b-u baa bab bae bag bal bat bau bba bbb bbe bbg bbl bbt bbu be- bea beb bee beg bel bet beu bga bgb bge bgg bgl bgt bgu bla blb ble blg bll blt blu bta btb bte btg btl btt btu bua bub bue bug bul but buu eaa eab eae eag eal eat eau eba ebb ebe ebg ebl ebt ebu eea eeb eee eeg eel eet ega egb ege egg egl egt egu ela elb ele elg ell elt elu eta etb ete etg etl ett etu eu- eua eub eue eug eul eut gaa gab gae gag gal gat gau gba gbe gbg gbl gbt gbu ge- gea geb gee geg gel get geu gga ggb ggg ggt ggu gla glb gle glg gll glt glu gta gtb gte gtg gtl gtt gtu gu- gua gub gue gug gul gut guu la- laa lab lae lag lal lat lau lba lbb lbe lbg lbl lbt lbu lea leb lee leg lel let leu lga lgb lge lgg lgl lgt lgu lla llb lle llg lll llt llu lta ltb lte ltg ltl ltt ltu lua lub lue lug lul lut luu taa tab tae tag tal tat tau tba tbb tbe tbg tbl tbt tbu te- tea teb tee teg tel tet teu tga tgb tge tgg tgl tgt tgu tla tle tlg tll tlt tlu tta ttb tte ttg ttl ttt ttu tua tub tue tug tul tut tuu ua- uaa uab uae uag ual uat uau uba ubb ube ubg ubl ubt ubu uea ueb uee ueg uel uet uga ugb uge ugg ugl ugt ugu ula ulb ule ulg ull ult ulu uta utb ute utl utt utu uua uue uug uut uuu