a-fu a-ii a-wa aaaa aaab aaaf aaai aaar aaba aabb aabi aabt aabw aafa aafb aaff aafi aaib aaii aaoo aaow aara aari aaro aart aaru aata aatf aatt aatw aauw aawt aaww abaa abab abaf abai abar abat abau abaw abb- abba abbb abbi abbo abbr abbt abff abia abib abir abit abiu aboa abob abof aboo abor abot abou abow abra abri abro abta abtu abua abuf abut abwa abwr abwu afaa afao afar afat affa affi affo afft affw afia afib afif afir afit afoa afoo afor afr- afra afri afro afru afta afua aiai aiba aibo aiff aiia aiib aiir aioi aira airi airo airt aita aitf aiti aitr aitt aitu aiui aiwa aiwo aoba aora aorb aort aotf aouf aout arab araf arai arar arat arau araw arba arbi arfa arfb arff arft arfu aria arib arif arii ario arit aroa arob aroi aroo aror arow arr- arra arri arro arrr arrt arru arta arti arto artr arua arub arui arut arwa arwi at-t ataa atab atai atar atat atfb atia atif atit atiu atob atof atoi ator atot atra atri atro atru atta atti atto attr attu atua atub atur atwa atwi atwo atwt atwu auaa aufi aur- aura auri auro aut- auto auwa awar awit awoo awow awro awwa ba-i baaa baaf baar baat baba babb babi babo babr babu baff bafo baft baia baib baio bair bait bar- bara barb barf bari baro barr bart baru bata batf bati bato batt batu bau- bauf baur baw- bawi bawu bbau bbbb bbwr bfta bftt biaf biao biar biat biba bibb bibi bibo bifa biff bifi bio- bioi biot biou bira birb biri biro birr birt biru bita bito bitt bitu biw- biwa boab boai boar boat boba bobb bobi bobo bobu bobw bofa boff bofu boi- boii boit boiu boob boof boor boot boow bor- bora borf bori boro borr bort boru borw bota botb boti boto bott botw boua bouf bour bout bouw bowa bowi bowr bowt brab braf brai brao brat brau braw brfu bria brio brit broa brob broo bror brot brou brow brrr brut btaa btaf btob btor btrt bttb btwo buar buat buba bubb bubi bubo bubu buff bufo bufr buif buir buit buiu bur- bura burb buri buro burr burt buru but- buta buti buto butt buwa bwaa faaa faba fabi fabo fabu fafa faff fafi fafo faio fair fait fara farb faro farr fart faru fata fatf fati fato fatt faur faut fawf fawt fbar ffar ffff ffii ffrr fftf fftw fiaa fiaf fiar fiat fiba fifa fiff fifi fifo fift fiii fior fira fita fiti fitt fiua foaf foar foba fobt fofo foia foof foot for- fora forb fori foro forr fort fota foti foto fott fotw foua four fout frab frat frau fria frib frio frit frob frot frou frow frta frub ftii fttw ftub ftwo fuar fuat fubb fubu fuff fufu fuir fuit fuor fur- fura furi furo furr furt futa futi futo futu fuwa fwiw iaaa iaai iaat iaba iaff iaia iara iart iaru iata iati iawa ibar ibat ibfi ibia ibot ibra ibri ibro ibtb ibwa ifaa ifao ifar ifat ifaw ifbb ifit ifor ifra ifrb ifrf ifri ifta ifto iifa iiii iiio iiit iioi iioo iira iita iitr iitt iiwi ioba iobi ioii ioio ioit ioof iooi iooo iora iori iota iotf ioto iowa iraf irai irao irar irfu iri- iria irio irob irra irri irta irtf irti itaa itaf itai itar itat itaw itfa itia itif itof itoi itoo itor itou itra itrf itri itta ittf itto itur itwa iuiu iura iwai iwao iwar iwbf iwiw oaau oafo oara obai obba obbo obia obit oboi obor obot obra obri obro off- offa offo offr offu ofit ofor ofra ofta oiba oiii oira oirt oita oiti ooaa ooba oobi ooff ooia oooo oora oort ootb ootw orab orai orao orar orat orba orbb orbi orbo orbu orff orfi orfu ori- oria orif orio orit oro- orof oror orot orra orri orro orta orto orub orwa orwo otar otif otit oto- otof otoo otor otow otra otro otta otti otto ottu otur otwo ouat ouff ouii ouir ouit our- oura ouro ourt out- outa outb outi outo ouu- owai owar owia owir owow owt- owtt owur owwa raab raaf raat raba rabb rabi rabo rabu rafa raff rafi raft raia raif raii rair rait raiu raob rara rarb rarf rari raro rata ratf rati rato ratt ratu raua raub rauf raut rawa rawr rawu raww rbaf rbbb rbbr riaa riab riai riat riau rib- riba ribo ribu rifa riff rift rifu riia riif riot riou riri rita riti rito ritt ritu riwo roab roaf roar roat rob- roba robb robi robo robt robu roff rofo roia roif roio roir roit roiu roob roof rooi roor root rora rori roro rort roru rota roti roto rotr rott roua roub rouf rout rowa rowb rowf rowi rowr rowt roww rrat rrif rrrr rtai rtbf rtfb ruba rubb rubi rubu rufa ruff rufo ruft ruif ruit rura ruri ruro ruru ruta ruti ruto rutt rutu ruwa ruwi taa- taaf taar taat taba tabb tabi tabo tabu tafa taff tafi tafo taft taia taio tair tait taoa taor taou tara tarb tarf tari taro tarr tart taru tata tatb tati tato tatr tatt tatu taua taub taur taut tawa tawi tawo tawt taww tbaf tbar tbit tbrb tbta tfot tiaa tiab tiaf tiao tiar tiba tibi tibu tifa tiff tifo tift tiit tiiu tiou tira tirb tiri tiro tirr tiru tita titi tito titt titu tiwa tiwi toab toat toau toaw toba tobi tobo tobt tobu tofa toff tofi tofo toft tofu toit tooa toof toor toot tora torf tori toro torr tort toru tota toti toto totr tott toui tour tout towa traa trab traf trai trao trat trau traw trfr tri- tria trib trif trio trit troa troi troo trot trou trow trra trtr trub trut truu ttab ttbb ttfa ttff tttt tuao