a-a a-b a-t aaa aab aao aar aat aau aax ab- aba abb abo abr abt abu abx aoa aob aoo aor aot aou aox ar- ara arb aro arr art aru arx at- ata atb ato atr att atu atx au- aua aub auo aur aut aux ax- axa axo axr axt axx b-u baa bab bao bar bat bau bax bba bbb bbo bbr bbt bbu bbx boa bob boo bor bot bou box bra brb bro brr brt bru brx bta btb bto btr btt btu btx bua bub buo bur but buu bux bxb bxo bxx oaa oab oao oar oat oau oax ob- oba obb obo obr obt obu obx oo- ooa oob ooo oor oot oox or- ora orb oro orr ort oru orx ot- ota otb oto otr ott otu ou- oua ouo our out ox- oxa oxb oxo oxt oxx ra- raa rab rao rar rat rau rax rba rbb rbo rbr rbt rbu rbx roa rob roo ror rot rou rox rra rrb rrr rrt rru rta rtb rto rtr rtt rtu rtx rua rub ruo rur rut ruu rux rxr t-x taa tab tao tar tat tau tax tba tbb tbo tbr tbt tbu to- toa tob too tor tot tou tox tra trb tro trr trt tru trx tta ttb tto ttr ttt ttu ttx tua tub tuo tur tut tuu tux txt txu ua- uaa uab uao uar uat uau uba ubb ubo ubr ubt ubu ubx uoa uob uoo uor uot uox ur- ura urb uro urr urt uru urx uta utb uto utr utt utu utx uua uur uut uuu uxb uxo uxr uxt uxu xaa xar xat xau xbr xbx xoa xoo xor xot xox xrt xrx xtr xtx xxo xxx

aaaa aaab aaar aaba aabb aabt aaoo aara aaro aart aaru aata aatt abaa abab abar abat abau abax abb- abba abbb abbo abbr abbt aboa abob aboo abor abot abou abox abra abro abta abtu abua abut aoba aora aorb aort aout arab arar arat arau arax arba aroa arob aroo aror arr- arra arro arrr arrt arru arta arto artr artx arua arub arut at-t at-x ataa atab atar atat atax atob ator atot atra atro atru atrx atta atto attr attu atua atub atur auaa aur- aura auro aut- auto auxa axar axat axo- axoa axto axxo ba-x baaa baar baat baba babb babo babr babu bar- bara barb baro barr bart baru barx bata bato batt batu bau- baur baux baxt bbau bbbb bbox boab boar boat boba bobb bobo bobu boob boor boot boox bor- bora boro borr bort boru bota botb boto bott boua bour bout boxa brab brao brat brau brax broa brob broo bror brot brou brox brrr brut brux btaa btob btor btrt bttb buar buat buba bubb bubo bubu bur- bura burb buro burr burt buru but- buta buto butt buxa oaau oara obba obbo obor obot obox 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- oxa- oxo- oxox oxxo raab raat raba rabb rabo rabu raob rara rarb raro rata rato ratt ratu raua raub raut raxa rbbb rbbr roab roar roat rob- roba robb robo robt robu roob roor root roox rora roro rort roru rota roto rotr rott roua roub rout roux roxa roxo 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 tax- taxa taxo taxt tbar tbox tbrb tbta toab toat toau toba tobo tobt tobu tooa toor toot tora toro torr tort toru torx tota toto totr tott tour tout tox- toxa toxo toxt traa trab trao trat trau trax troa troo trot trou trox trra trtr trub trut truu trux ttab ttbb tttt tuao tuar tuat tuba tubb tubo tubr tubu tuor tura turb turo turr turt turu tuta tuto tutt tutu tuuo txaa txtr uart uaru uata uatu uaua ubar ubba ubbo ubra uor- urao urat urau urba uro- uroa uroo urox urra urur urut utau utor utto uttu uuta uuuu uxor xaar xara xbar xbox xbra xoro xout xoxo xtar xtra xtro xura xuxa xuxu xxxo xxxx

-aaa- a-box 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 araux araxa arbab arbar arbat arbor arbot aroab aroar aroba aroor aroot arora arout arrau arrou arrua art-x artar artat artax arto- artoo artot artou artur artux aruaa aruba arura aruru aruta atabu atara ataru ataxx atbar atbat atoot atora atoto atour atout atrab atrax atro- atroa atrot atrox attar atto- attra attur atura auaxa aurar aurat auro- auroa auror aurox aurra auto- autor auxo- axura baart baata babar babau babax baboo babot babou babra babur babut baoro bar-x 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 bootx borat borau borax borba borbo boro- boroa boroo borot borou borox borra borro borut botar botou botox botro botta bottu bouar bouat bouba boura bouto boutx braat bratt bratu braut braux brobo brora broto brout broxa brrar brrrr bruta bruxa btr-t bubba buota buoux buraa burao burat buroo burra burro burru burta burtt burut butat buto- butoa butor butot butou butua butuo butut buxar o-r-b oaror obaba obara obata obora oboro obout obrab obrat ooooo oraba orara orato orbot orobo oroua