a-ak a-ok aaaa aaab aaar aaav aaba aabb aabt aaka aaoo aara aaro aart aata aatk aatt aava abaa abab abag abak abar abat abb- abba abbb abbo abbr abbt aboa abob abok aboo abor abot abov abra abro abta abva ag-o agag agao agar agat agav agba agbo agga agob agog agoo agot agra agro agta agtr agva akaa akao akar akka akko akok akot akr- akra aktv aoba aora aorb aort arab arag arak arar arat arba arga argb argo arka arko aroa arob aroo aror arr- arra arrg arrk arro arrr arrt arta arto artr artv arva arvo at-t ataa atab atak atar atat atgo atka atkt atkv atob atok ator atot atra atrk atro atta atto attr avab avao avar avat avgo avkt avor avot avra avro avva avvo baaa baak baar baat baba babb babo babr baga bagg bago bagt bak- baka bako bakr bakt bar- bara barb barg bark baro barr bart bata bato batt bava bbbb bbga bbrg boab boag boak boar boat boba bobb bobo boga bogg bogo bogt boka boko boob boog book boor boot bor- bora borg bork boro borr bort bota botb boto bott bova bovo brab brag brak brao brat brav brka brkb broa brob brog brok broo bror brot brrr btaa btob btor btrt bttb gaar gaba gabb gabo gabr gabt gaga gagg gago gara garb garg garo garr gart garv gata gato gatr gatt gatv gava gbag gbbo ggbt gggg goar goat goba gobo goga gogo goog gook goor goot gora gorb gorg goro gorr gort gota goto gott gotv govt grab grat grav grbr grob grog grok groo gror grot grov grrr gtaa gtbr gtta gvat gvtv gvvv kaaa kaab kaag kaak kaar kaat kaba kabb kabg kabo kabr kag- kaga kagb kagg kago kagr kagt kagv kaka kakk kako kakt kaoa kaog kaok kaor kara karb karg kark karo karr kart karv kat- kata katb katg katk kato katr katt katv kava kavb kavo kavv kbaa kbab kbak kbar kbat kbba kbbb kbbg kbbk kbbo kbbr kbbt kbga kbgb kbgg kbgo kbgr kbgt kbkb kbkg kbkk kbko kbkr kbkv kboa kbob kbok kboo kbot kbov kbra kbrb kbrg kbrk kbro kbrt kbrv kbta kbtb kbtk kbto kbtr kbtt kbtv kbva kbvb kbvo kbvr kgab kgak kgba kgbb kgbr kgbt kgga kggg kggo kggr kgor kgot kgra kgrb kgrg kgrk kgro kgrr kgrt kgrv kgtk kgto kgtv kgva kgvo kkaa kkag kkar kkat kkba kkbb kkbg kkbo kkbr kkbt kkgb kkgo kkgr kkkk kkoa kkob kkoo kkor kkot kkov kkrb kkrk kkro kkrr kkrt kkrv kktk kktv kkvr kkvt kkvv koab koak koar koba kobb kobk kobo kobr koga kogb kogg kogo kogt koka kokb kokk koko kokr koob koog kook kooo koor koot koov kora korb korg kork koro korr kort korv kota kotb kotk koto kotr kott kotv kova kovk kovo kovr krab krag krak krar krat krav krba krbb krbg krbk krbr krbt krgt krka krkk krko krkr krkv kroa krob krog krok kroo kror krov krrb krrg krrk krro krrr krrt krta krtk krto krtr krtv krva krvb krvg krvk krvo krvr krvv ktaa ktag ktak ktao ktar ktat ktav ktba ktbb ktbg ktbr ktbt ktga ktgg ktgo ktgr ktgv ktkb ktkk ktko ktkr ktkt ktob ktok ktoo ktor ktot ktrb ktrg ktrk ktro ktrr ktrt ktrv kttg kttk ktto kttr kttt kttv ktva ktvb ktvk ktvo ktvr ktvt kvab kvak kvar kvat kvbr kvbt kvgb kvgo kvoa kvob kvog kvok kvoo kvor kvot kvov kvra kvrg kvro kvrr kvrv kvta kvtk kvto kvtr kvtt kvtv kvvr kvvv oara obak obba obbo obkb obok obor obot obra obro ogar ogb ogba ogoa ogog ogra ogro okak okgo okka okko okok okor okot okra okro okta okto ooaa ooak ooba oooo oora oort ootb orab orak orao orar orat orav orba orbb orbo orga orgo orka orko oro- orok oror orot orra orro orta orto orvr otak otar oto- otog otok otoo otor otov otra otro otta otto ovar ovo- ovoo ovot ovra raab raag raak raat raba rabb rabk rabo raga ragg rago raka rakk rakt raob raok rara rarb rark raro rata ratk rato ratt rava rbbb rbbr rgba rgtr roab roag roak roar roat rob- roba robb robo robt roga rogg rogo roka rokk roko rokr roob roog rook roor root rora rork roro rort rota rotg rotk roto rotr rott rova rovo rrat rrrr rtkg rtva taa- taag taar taat taba tabb tabo taga tagg tago taka takk tako takt taoa taor tara tarb targ tark taro tarr tart tata tatb tato tatr tatt tatv tava tavo tbar tbrb tbta tkkg toab toat toba tobo tobt toga togo togr togt toka toko tooa took toor toot tora torg tork toro torr tort torv tota toto totr tott tova tovo traa trab trag trak trao trat trav troa trog troo trot trra trtr ttab ttbb ttkg tttt tvro tvrr tvtv vaar vaat vag- vaga vagg vagt vaka vara varg vark varr vart vata vato vatt vava vbrg vkor voar voat voga vogt voka voog voor voot vor- vora voro vort vota voto vovk vrak vrav vrba vrot vrto vvob vvog vvvv