-al a-a a-b a-t aaa aab aae aag aal aas aat aav ab- aba abb abe abg abl abs abt abv aea aeb aee aeg ael aes aet aev ag- aga agb age agg agl ags agt agv al- ala alb ale alg all als alt alv as- asa asb ase asg asl ass ast asv at- ata atb ate atg atl ats att atv av- ava avb ave avg avl avs avt baa bab bae bag bal bas bat bav bba bbb bbe bbg bbl bbs bbt be- bea beb bee beg bel bes bet bev bga bgb bge bgg bgl bgs bgt bgv bla blb ble blg bll bls blt blv bsa bsb bse bsg bsl bss bst bsv bta btb bte btg btl bts btt btv bva bvb bve bvg bvl bvs bvt bvv eaa eab eae eag eal eas eat eav eba ebb ebe ebg ebl ebs ebt ebv eea eeb eee eeg eel ees eet eev ega egb ege egg egl egs egt ela elb ele elg ell els elt elv es- esa esb ese esg esl ess est esv eta etb ete etg etl ets ett etv eva evb eve evg evl evs evt evv gaa gab gae gag gal gas gat gav gba gbe gbg gbl gbs gbt gbv ge- gea geb gee geg gel ges get gev gga ggb ggg ggs ggt ggv gla glb gle glg gll gls glt glv gsa gsb gse gsg gsl gss gst gsv gta gtb gte gtg gtl gts gtt gtv gva gvb gve gvg gvl gvs gvt la- laa lab lae lag lal las lat lav lba lbb lbe lbg lbl lbs lbt lbv lea leb lee leg lel les let lev lga lgb lge lgg lgl lgs lgt lgv lla llb lle llg lll lls llt llv lsa lsb lse lsg lsl lss lst lsv lta ltb lte ltg ltl lts ltt ltv lva lvb lve lvg lvl lvs lvt lvv saa sab sae sag sal sas sat sav sba sbb sbe sbg sbl sbs sbt sbv se- sea seb see seg sel ses set sev sga sgb sge sgg sgl sgs sgt sgv sla slb sle slg sll sls slt slv ss- ssa ssb sse ssg ssl sss sst ssv sta stb ste stg stl sts stt stv sva svb sve svg svl svs svt svv taa tab tae tag tal tas tat tav tba tbb tbe tbg tbl tbs tbt tbv te- tea teb tee teg tel tes tet tev tga tgb tge tgg tgl tgs tgt tgv tla tle tlg tll tls tlt tlv tsa tsb tse tsg tsl tss tst tsv tta ttb tte ttg ttl tts ttt ttv tva tvb tve tvg tvl tvs tvt v-a v-e vaa vab vae vag val vas vat vav vba vbg vbl vbs vbv vea veb vee veg vel ves vet vga vgg vgl vgs vgt vl- vla vlb vle vll vls vlt vlv vsa vsb vse vsg vsl vss vst vsv vta vtb vte vtg vtl vts vtt vtv vva vvb vvg vvs vvt vvv