a-a a-b a-t aaa aab aao aar aat aau ab- aba abb abo abr abt abu aoa aob aoo aor aot aou ar- ara arb aro arr art aru at- ata atb ato atr att atu au- aua aub auo aur aut b-u baa bab bao bar bat bau bba bbb bbo bbr bbt bbu boa bob boo bor bot bou bra brb bro brr brt bru bta btb bto btr btt btu bua bub buo bur but buu oaa oab oao oar oat oau ob- oba obb obo obr obt obu oo- ooa oob ooo oor oot or- ora orb oro orr ort oru ot- ota otb oto otr ott otu ou- oua ouo our out ra- raa rab rao rar rat rau rba rbb rbo rbr rbt rbu roa rob roo ror rot rou rra rrb rrr rrt rru rta rtb rto rtr rtt rtu rua rub ruo rur rut ruu taa tab tao tar tat tau tba tbb tbo tbr tbt tbu to- toa tob too tor tot tou tra trb tro trr trt tru tta ttb tto ttr ttt ttu tua tub tuo tur tut tuu ua- uaa uab uao uar uat uau uba ubb ubo ubr ubt ubu uoa uob uoo uor uot ur- ura urb uro urr urt uru uta utb uto utr utt utu uua uur uut uuu

aaaa aaab aaar aaba aabb aabt aaoo aara aaro aart aaru aata aatt abaa abab abar abat abau abb- abba abbb abbo abbr abbt aboa abob aboo abor abot abou abra abro abta abtu abua abut aoba aora aorb aort aout arab arar arat arau arba aroa arob aroo aror arr- arra arro arrr arrt arru arta arto artr arua arub arut at-t ataa atab atar atat atob ator atot atra atro atru atta atto attr attu atua atub atur auaa aur- aura auro aut- auto baaa baar baat baba babb babo babr babu bar- bara barb baro barr bart baru bata bato batt batu bau- baur bbau bbbb boab boar boat boba bobb bobo bobu boob boor boot bor- bora boro borr bort boru bota botb boto bott boua bour bout brab brao brat brau broa brob broo bror brot brou brrr brut btaa btob btor btrt bttb buar buat buba bubb bubo bubu bur- bura burb buro burr burt buru but- buta buto butt oaau oara obba obbo obor obot obra obro ooaa ooba oooo oora oort ootb orab orao orar orat orba orbb orbo orbu oro- oror orot orra orro orta orto orub otar oto- otoo otor otra otro otta otto ottu otur ouat our- oura ouro ourt out- outa outb outo ouu- raab raat raba rabb rabo rabu raob rara rarb raro rata rato ratt ratu raua raub raut rbbb rbbr roab roar roat rob- roba robb robo robt robu roob roor root rora roro rort roru rota roto rotr rott roua roub rout rrat rrrr ruba rubb rubu rura ruro ruru ruta ruto rutt rutu taa- taar taat taba tabb tabo tabu taoa taor taou tara tarb taro tarr tart taru tata tatb tato tatr tatt tatu taua taub taur taut tbar tbrb tbta toab toat toau toba tobo tobt tobu tooa toor toot tora toro torr tort toru tota toto totr tott tour tout traa trab trao trat trau troa troo trot trou trra trtr trub trut truu ttab ttbb tttt tuao tuar tuat tuba tubb tubo tubr tubu tuor tura turb turo turr turt turu tuta tuto tutt tutu tuuo uart uaru uata uatu uaua ubar ubba ubbo ubra uor- urao urat urau urba uro- uroa uroo urra urur urut utau utor utto uttu uuta uuuu

-aaa- aaata aabaa aabba aabra aarau abaab ababa ababu abara abaru abbar abbat abbot abbou abbur aboab aboat abobo aboot abora abort abott about abrar abtaa abtao abtar abura aburr abuta abutt aort- aorta ar-ab araat arab- araba arabo arara araru arata arbab arbar arbat arbor arbot aroab aroar aroba aroor aroot arora arout arrau arrou arrua artar artat arto- artoo artot artou artur aruaa aruba arura aruru aruta atabu atara ataru atbar atbat atoot atora atoto atour atout atrab atro- atroa atrot attar atto- attra attur atura aurar aurat auro- auroa auror aurra auto- autor baart baata babar babau baboo babot babou babra babur babut baoro baraa barab barao barar barat barba barbu baro- baroa baroo baror barot barra barro barru barta barto barua barut batab batar batat batau batob batoo bator batou batra batta batto battu batuo batur baubo baura bauru bauta bbart bo-bo boaro boart bobar bobr booat booba boora boort booru boota borat borau borba borbo boro- boroa boroo borot borou borra borro borut botar botou botro botta bottu bouar bouat bouba boura bouto braat bratt bratu braut brobo brora broto brout brrar brrrr bruta btr-t bubba buota buraa burao burat buroo burra burro burru burta burtt burut butat buto- butoa butor butot butou butua butuo butut o-r-b oaror obaba obara obata obora oboro obout obrab obrat ooooo oraba orara orato orbot orobo oroua orout ortoo oruro orutu otara otaru otoba ototo otour otrar ottar ottur otura ouara oubut ouoro ourba ourta outat outro outta outto ra-ra raaba raaor rabab rabat rabba rabor rabot rabou rabta rabut ratau ratba ratot ratra ratta ratto rattu ratua rauta rboat ro-ro robab robar robat robbo robo- robor robot robrt robur rooba roota rorbu rorra rota- rotar roto- rotoa rotor rotot rotta rotto rouba roubt roura routa routt rubab rubat rubba rubor rubra rutab rutar ruutu t-ara t-bar ta-ra ta-ta ta-tu taabo taart tabar tabat tabo- taboo tabor tabot tabou tabra tabua tabur tabut taoru tarar tarat tarob taroo tarot tarra tarro tarta tartt tartu tarur tataa tatao tatar tatau tatoo tator tatou tatra tatta tatto tattu taur- taura tauro taut- tauto tbtbt tbutt toaru tobar tobat tobor tobot tobou toora torab torat torba toroa torob torro torta torto tortu toto- totoo totra totta touba toura touro touta traba trabu traor trata trato tratt traub troat trota trott trout truba trubu truro