-er a-a a-b a-t aaa aab aae aag aar aas aat aav ab- aba abb abe abg abr abs abt abv aea aeb aee aeg aer aes aet aev ag- aga agb age agg agr ags agt agv ar- ara arb are arg arr ars art arv as- asa asb ase asg asr ass ast asv at- ata atb ate atg atr ats att atv av- ava avb ave avg avr avs avt baa bab bae bag bar bas bat bav bba bbb bbe bbg bbr bbs bbt be- bea beb bee beg ber bes bet bev bga bgb bge bgg bgr bgs bgt bgv bra brb bre brg brr brs brt brv bsa bsb bse bsg bsr bss bst bsv bta btb bte btg btr bts btt btv bva bvb bve bvg bvr bvs bvt bvv eaa eab eae eag ear eas eat eav eba ebb ebe ebg ebr ebs ebt ebv eea eeb eee eeg eer ees eet eev ega egb ege egg egr egs egt era erb ere erg err ers ert erv es- esa esb ese esg esr ess est esv eta etb ete etg etr ets ett etv eva evb eve evg evr evs evt evv gaa gab gae gag gar gas gat gav gba gbe gbg gbr gbs gbt gbv ge- gea geb gee geg ger ges get gev gga ggb ggg ggr ggs ggt ggv gra grb gre grg grr grs grt grv gsa gsb gse gsg gsr gss gst gsv gta gtb gte gtg gtr gts gtt gtv gva gvb gve gvg gvr gvs gvt ra- raa rab rae rag rar ras rat rav rba rbb rbe rbg rbr rbs rbt re- rea reb ree reg rer res ret rev rga rgb rge rgg rgr rgs rgt rgv rra rrb rrg rrr rrs rrt rsa rsb rse rsg rsr rss rst rsv rta rtb rte rtg rtr rts rtt rtv rva rvb rve rvg rvr rvs rvt rvv saa sab sae sag sar sas sat sav sba sbb sbe sbg sbr sbs sbt sbv se- sea seb see seg ser ses set sev sga sgb sge sgg sgr sgs sgt sgv sr- sra srb sre srg srr srs srt srv ss- ssa ssb sse ssg ssr sss sst ssv sta stb ste stg str sts stt stv sva svb sve svg svr svs svt svv taa tab tae tag tar tas tat tav tba tbb tbe tbg tbr tbs tbt tbv te- tea teb tee teg ter tes tet tev tga tgb tge tgg tgr tgs tgt tgv tra trb tre trg trr trs trt trv tsa tsb tse tsg tsr tss tst tsv tta ttb tte ttg ttr tts ttt ttv tva tvb tve tvg tvr tvs tvt v-a v-e vaa vab vae vag var vas vat vav vba vbg vbr vbs vbv vea veb vee veg ver ves vet vga vgg vgr vgs vgt vra vrb vre vrg vrr vrs vrt vsa vsb vse vsg vsr vss vst vsv vta vtb vte vtg vtr vts vtt vtv vva vvb vvg vvr vvs vvt vvv

-ase a-be aaaa aaab aaae aaar aaas aaav aaba aabb aabt aaea aaes aaev aage aara aare aars aart aasa aase aass aast aata aatt aava abaa abab abae abag abar abas abat abb- abba abbb abbe abbr abbs abbt abee aber abes abet abra abrs abs- absa abse abss abta abts abva aeas aebs aeer aega aer- aera aers aess aest aeta aetr aett aeva agag agar agas agat agav agba agea agee ager ages aget agga agge agra agre agsa agsg agst agta agte agtr agts agva arab arae arag arar aras arat arba arbe arbs area aree areg ares aret arev arga argb arge args arr- arra arre arrg arrr arrs arrt ars- arsa arse arst arta arte artr arts artv arva arve asaa asab asae asag asar asas asat asba asea asee aser ases aset asge asgt asra asrg asrs assa asse assr asss asst asta astb aste astr asts astv asva asvs at-t ataa atab atae atar atas atat atbs atea atee ater ates atra atre atsb atse atst atta atte attr atts atvs avab avar avas avat avea aver aves avgs avra avre avst avva baaa baar baas baat baba babb babe babr babs baer baes baga bage bagg bags bagt bar- bara barb bare barg barr bars bart basa base bass bast bata bate bats batt bava bave bbas bbbb bbbs bbeb bbet bbga bbrg beag bear beas beat beav beba bebb bebe beeb beeg beer bees beet bega begg begs bera bere berg berr bers bert bes- besa bese bess best beta bete bets bett betv bevs bggs bgst brab brae brag bras brat brav brea breb bree breg brer bres bret brev brrr brrs brsb brsr brst bsaa bsas bsat bsea bseb bsee bseg bser bses bset bsgs bsra bsse bsts bstv btaa btrt btss bttb eaba eaga eage eara earb eare ears eart easa ease east eata eate eats eave ebba ebbr ebbs eber ebes ebsa eeea eeee eees eega eegs eera eerg eers eese eeta eete eets eeva egaa egae egar egas egat egba egbe egea egee eger eggb egge eggs egra egre egss egta egte egts eras erat erba erbb erbe ereb erer eres eret erev erg- erga ergg ergs erra erre errs ersa erse erst erta erts erve esab esag esar esas esat esba esbs esea esee eser eses eset esra essa esse essg esst esta este estr ests estv etag etas etat etbr etee eter etes etra etre etta ette evae evar evas evat evea ever eves evet evga evra evre evrs evst gaar gaas gaba gabb gabe gabr gabs gabt gaea gaer gaes gaga gage gagg gags gara garb gare garg garr gars gart garv gasa gasb gase gasr gass gast gata gate gatr gats gatt gatv gava gave gbag gbas gbbs geab gear geas geat geba gebe geer gees geet gege gegg gera gerb gere gers gert gesg gess gest