-al a-a a-b a-t aaa aab aae aag aal aat aav ab- aba abb abe abg abl abt abv aea aeb aee aeg ael aet aev ag- aga agb age agg agl agt agv al- ala alb ale alg all alt alv at- ata atb ate atg atl att atv av- ava avb ave avg avl avt baa bab bae bag bal bat bav bba bbb bbe bbg bbl bbt be- bea beb bee beg bel bet bev bga bgb bge bgg bgl bgt bgv bla blb ble blg bll blt blv bta btb bte btg btl btt btv bva bvb bve bvg bvl bvt bvv eaa eab eae eag eal eat eav eba ebb ebe ebg ebl ebt ebv eea eeb eee eeg eel eet eev ega egb ege egg egl egt ela elb ele elg ell elt elv eta etb ete etg etl ett etv eva evb eve evg evl evt evv gaa gab gae gag gal gat gav gba gbe gbg gbl gbt gbv ge- gea geb gee geg gel get gev gga ggb ggg ggt ggv gla glb gle glg gll glt glv gta gtb gte gtg gtl gtt gtv gva gvb gve gvg gvl gvt la- laa lab lae lag lal lat lav lba lbb lbe lbg lbl lbt lbv lea leb lee leg lel let lev lga lgb lge lgg lgl lgt lgv lla llb lle llg lll llt llv lta ltb lte ltg ltl ltt ltv lva lvb lve lvg lvl lvt lvv taa tab tae tag tal tat tav tba tbb tbe tbg tbl tbt tbv te- tea teb tee teg tel tet tev tga tgb tge tgg tgl tgt tgv tla tle tlg tll tlt tlv tta ttb tte ttg ttl ttt ttv tva tvb tve tvg tvl tvt v-a v-e vaa vab vae vag val vat vav vba vbg vbl vbv vea veb vee veg vel vet vga vgg vgl vgt vl- vla vlb vle vll vlt vlv vta vtb vte vtg vtl vtt vtv vva vvb vvg vvt vvv