-al a-a a-b a-t aaa aab aae aaf aag aal aat aav ab- aba abb abe abf abg abl abt abv aea aeb aee aef aeg ael aet aev af- afa afb afe aff afg afl aft afv ag- aga agb age agf agg agl agt agv al- ala alb ale alf alg all alt alv at- ata atb ate atf atg atl att atv av- ava avb ave avf avg avl avt baa bab bae baf bag bal bat bav bba bbb bbe bbf bbg bbl bbt be- bea beb bee bef beg bel bet bev bfa bfb bfe bff bfg bfl bft bfv bga bgb bge bgf bgg bgl bgt bgv bla blb ble blf blg bll blt blv bta btb bte btf btg btl btt btv bva bvb bve bvg bvl bvt bvv eaa eab eae eaf eag eal eat eav eba ebb ebe ebf ebg ebl ebt ebv eea eeb eee eef eeg eel eet eev ef- efa efb efe eff efg efl eft ega egb ege egf egg egl egt ela elb ele elf elg ell elt elv eta etb ete etf etg etl ett etv eva evb eve evf evg evl evt evv faa fab fae faf fag fal fat fav fba fbb fbe fbf fbg fbl fbt fea feb fee fef feg fel fet fev ffa ffe fff ffg ffl fft ffv fga fgb fge fgf fgg fgl fgt fgv fla flb fle flf flg fll flt fta ftb fte ftf ftg ftl ftt ftv fva fvg fvt gaa gab gae gaf gag gal gat gav gba gbe gbf gbg gbl gbt gbv ge- gea geb gee gef geg gel get gev gfa gfb gfe gff gfl gft gga ggb ggg ggt ggv gla glb gle glf glg gll glt glv gta gtb gte gtf gtg gtl gtt gtv gva gvb gve gvf gvg gvl gvt la- laa lab lae laf lag lal lat lav lba lbb lbe lbf lbg lbl lbt lbv lea leb lee lef leg lel let lev lfa lfb lfe lff lfg lfl lft lga lgb lge lgf lgg lgl lgt lgv lla llb lle llf llg lll llt llv lta ltb lte ltf ltg ltl ltt ltv lva lvb lve lvf lvg lvl lvt lvv taa tab tae taf tag tal tat tav tba tbb tbe tbf tbg tbl tbt tbv te- tea teb tee tef teg tel tet tev tfa tfb tfe tff tfg tfl tft tga tgb tge tgf tgg tgl tgt tgv tla tle tlf tlg tll tlt tlv tta ttb tte ttf ttg ttl ttt ttv tva tvb tve tvf tvg tvl tvt v-a v-e vaa vab vae vag val vat vav vba vbg vbl vbv vea veb vee vef veg vel vet vfa vfb vff vfg vfl vft vfv vga vgf vgg vgl vgt vl- vla vlb vle vlf vll vlt vlv vta vtb vte vtg vtl vtt vtv vva vvb vvg vvt vvv