-vac a-be aaaa aaab aaac aaae aaar aaav aaba aabb aabc aabt aaca aacb aacc aace aacr aact aacv aaea aaec aaev aage aara aarc aare aart aata aatc aatt aava abaa abab abac abae abag abar abat abb- abba abbb abbe abbr abbt abca abcb abcc abcr abct abec abee aber abet abra abrc abta abva ac-t acaa acab acac acae acag acar acat acba acca accc acce acct ace- acea acec acer acet acev acga acgr acr- acra acrc acre acrr acrv acta actc acte actg actt actv acvv aeac aecb aect aeer aega aer- aera aerc aeta aetc aetr aett aeva agac agag agar agat agav agba agca agcc agce agct agea agee ager aget agga agge agra agre agta agte agtr agva arab arac arae arag arar arat arba arbe arc- arca arce arct area arec aree areg aret arev arga argb arge arr- arra arrc arre arrg arrr arrt arta artc arte artr artv arva arve at-t ataa atab atac atae atar atat atca atcc atcr atea atec atee ater atra atrc atre atta atte attr avab avar avat avcc avce avea avec aver avra avre avva baaa baar baat baba babb babe babr bac- baca bacc bace bact baer baga bage bagg bagt bar- bara barb barc bare barg barr bart bata batc bate batt bava bave bbbb bbeb bbet bbga bbrc bbrg bcaa bcar bcat bcbc bcbg bcca bccc bcec bcer bcet bcra bctc beag bear beat beav beba bebb bebe beca beeb beeg beer beet bega begg bera berc bere berg berr bert beta betc bete bett betv bgca brab brac brae brag brat brav brca brcb brce brea breb brec bree breg brer bret brev brrr brtc btaa btcc btec btrc btrt bttb caaa caab caac caat caba cabe cabg cac- caca cacc cace cacr caec caer caga cage cagg cagr cara carb carc care carr cart cat- cata catb catc cate catt catv cava cave cbac cbar cbat cbbc cbca cbcc cbce cbcr cbct cbea cbec cbee cber cbet cbga cbgb cbre cbrt cbta cbtc cbtv cbva cbvb cbve cbvg cbvr ccaa ccab ccac ccag ccar ccat ccba ccbc ccca cccb cccc cccv ccee ccga ccgc ccgt ccra ccrc ccre ccrg ccrt cctb cctc cctt cctv ceac cear ceat ceba cec- ceca cece cect ceeb ceec cege cer- cera cerc cere cert cet- ceta cete cetv ceva cgac cgcc cgcg cger crab crac crag crar crat crbc crca crcc crce crcr cre- crea creb crec cree creg cret crrt crtc crtv ctab ctae ctag ctba ctca ctec ctge ctrc ctta ctvt cvac cvar cvca cvcc cver cvet cvra cvrg cvrr cvte eaba eaca eacc eaec eaga eage eara earb eare eart eata eate eave ebac ebba ebbc ebbr ebcc eber ecaa ecac ecar ecat ecbc ecbe ecca eccb eccc ecce ecct ecra ecrc ecrr ecrv ect- ecta ectc ectv eeca eeea eeee eega eera eerc eerg eeta eetc eete eeva egaa egae egar egat egba egbe egcc egcg egcr egea egec egee eger eggb egge egra egre egta egte erat erba erbb erbe erca ercc erce ereb erec erer eret erev erg- erga ergg erra errc erre erta erve etag etat etbc etbr etcc etec etee eter etra etre etta ette evac evae evar evat evea ever evet evga evra evre gaar gaba gabb gabe gabr gabt gace gaea gaec gaer gaga gage gagg gara garb gare garg garr gart garv gata gatc gate gatr gatt gatv gava gave gbag gc-c gcaa gcat gcbc gccc gcet gcrg gctc geab gear geat geba gebe geca gece geer geet gege gegg gera gerb gere gert geta getb gete getg gett geva geve ggbt gggg grab grac grae grat grav grbr grcc grce grea greb grec gree greg gret grev grrr grtc grve gtaa gtbr gtcr gtea gtta gvat gvtv gvvv raab raag raat raba rabb rabe rac- raca racc race ract racv raec raeg raer raga rage ragg rara rarb rare rata rate ratt rava rave rbbb rbbr rcac rcbc rccb rccc rcet rcga rcgc rcrg rctc rctg rctv rcvr rea- reac reae rear reat reba rebb rebe reca recc rece recr rect reeb reet reev rega rege regr regt rera rere rerg rert reta rete retr rett reva reve rgba rgbe rgtr rrat rrrr rtca rtcc rtce rtcg rtee rtva rtve rv-c rvca rver taa- taag taar taat taba tabb tabc tabe taca tacc tace tact tacv taec taer taga tage tagg tara tarb tarc tare targ tarr tart tata tatb tate tatr tatt tatv tava tave tbar tbca tbcb tbcc tbce tbrb tbta tcca tccc tcga tctc teac tear teat teba teca tecr tect teec teer teet teev tega tegg tegt ter- tera terc tere terr teta tete tetr tett teva tgcc tgtc traa trab trac trae trag trat trav trca trcc tre- trea trec tree treg tret trev trge trra trtc trte trtr ttab ttbb tter tttt tvac tver tvgc tvrr tvtv vaar vaat vaca vace vag- vaga vage vagg vagt vara vare varg varr vart vata vate vatt vava vbcc vbrg vcat vear veat veba vecc veer veet vega vege ver- vera verb vere vert veta vete vetr veve vgcc vrac vrav vrba vret vtac vtec vver vvvv