a-a a-b aaa aab aad aao aar aau ab- aba abb abd abo abr abu ad- ada adb add ado adr adu aoa aob aod aoo aor aou ar- ara arb ard aro arr aru au- aua aub aud auo aur b-u baa bab bad bao bar bau bba bbb bbd bbo bbr bbu bda bdb bdd bdo bdr bdu boa bob bod boo bor bou bra brb brd bro brr bru bua bub bud buo bur buu daa dab dad dao dar dau dba dbb dbd dbo dbr dbu dda ddb ddd ddo ddr ddu doa dob dod doo dor dou dra drb drd dro drr dru dua dub dud duo dur oaa oab oad oao oar oau ob- oba obb obd obo obr obu oda odb odd odo odr odu oo- ooa oob ood ooo oor or- ora orb ord oro orr oru ou- oua oud ouo our ra- raa rab rad rao rar rau rba rbb rbd rbo rbr rbu rda rdb rdd rdo rdr rdu roa rob rod roo ror rou rra rrb rrd rrr rru rua rub rud ruo rur ruu ua- uaa uab uad uao uar uau uba ubb ubo ubr ubu uda udb udd udo udr udu uoa uob uod uoo uor ur- ura urb urd uro urr uru uua uur uuu

a-do aaaa aaab aaad aaar aaba aabb aabd aada aadu aaoo aara aard aaro aaru abaa abab abad abar abau abb- abba abbb abbo abbr abda abdo abdu aboa abob abod aboo abor abou abra abro abua abud adaa adab adad adao adar adba adda addd addo addr addu adob adod adoo ador adra adro adua adub adur aoba aora aorb arab arad arar arau arba arda ardo ardu aroa arob arod aroo aror arr- arra arro arrr arru arua arub arud auaa audo aur- aura aurd auro baaa baad baar baba babb babo babr babu bada badb badd bado badr badu bar- bara barb bard baro barr baru bau- baud baur bbad bbau bbbb bbdd bbdo bd-r boab boad boar boba bobb bobo bobu boda bodb bodo bodu boob bood boor bor- bora bord boro borr boru boua boud bour brab brad brao brau brda brdo broa brob brod broo bror brou brrr brud buad buar buba bubb bubo bubu buda budb budd budo budu bur- bura burb burd buro burr buru d-bo daab daad daar daau daba dabb dabo dabu dada dado dadu daou dara darb dard daro darr daru daub daud daur dbar dddd ddub doab doar doba dobb dobu dod- doda dodd dodo doob dood door dora dord doro dorr doru doub doud dour draa drab drad drar drau drba drda drob drod drou drra drua drub druu duaa duab duad duar dub- duba dubb dubu duda dudd dudo dudu duo- dura duro duru duur oaau oara obad obba obbo obor obra obro odbo odda oddd odoo odor odou odra odur ooaa ooba ooda oooo oora oord orab orad orao orar orba orbb orbo orbu orda ordo ordu oro- oror orra orro orub ouad our- oura ouro ouu- raab raad raba rabb rabo rabu rada radd rado radr radu raob rara rarb raro raua raub raud rbbb rbbr roab road roar rob- roba robb robo robu roda rodd rodo roob rood roor rora roro roru roua roub roud rrad rrrr ruad ruba rubb rubu ruda rudd rudo rura rurd ruro ruru ruud uaru uaua ubar ubba ubbo ubod ubra ubud udaa udad udar udau udoo udra uor- urad urao urau urba urda urdu uro- uroa uroo urra urur uuuu

-aaa- -abad aabaa aabba aabra aarau abaab ababa ababu abada abara abaru abbad abbar abbod abbou abbud abbur aboab aboad abobo abood abora abord aboud abrad abrar abrod abrud abuda abura aburr adaba adada adado adaou adara adaro addra addur adoar adobo adodb adoor adora adoro adoub adour adrad adrar adroa aduba aouda ar-ab arab- araba arabo arada arado arara araru arbab arbar arbor ardab ardod ardor ardra ardua ardud aroab aroad aroar aroba aroor arora arrau arrou arrua aruaa aruba arura aruru aubad audad audra audru aurad aurar auro- auroa auror aurra baard babar babau babdo baboo babou babra babur badao badar baddo badod badoo badou badra badur baoro baraa barab barad barao barar barba barbu barda bardo bardu baro- baroa baroo baror barra barro barru barua barud baubo baura bauru bdoor bo-bo boada board boaro bobar bobr bodd- bodor booba boora boord booru borau borba borbo borda bordo boro- boroa borod boroo borou borra borro bouar bouba bouda boudu boura bourd brada bradu brard braud brdda broad brobo broda brodd brodo brood brora broud brrar brrrr brud- buada bubba budda buddu budur buord buraa burao burda buroo burra burro burru burud d-a-d d-rad d-rod daada daara dabar dabba dabbu dabou dabra dabua dabur dadao dadar dadau dadda daddo dadoo dadou dadra dadur daraa darab darba darbu darda dardo darod daroo darra darro darur dauda daura ddddd do-do doaba doado dobra dobro dodab dodad dodoo dodro dooab dooar doodo doora dorab dorad dorra dorud douar doura douro draba drbob drobo drood duara dubar dubau dubba dubbo dubra dudar duddo dudou dudua durab durao durba durra o-r-b oaror obaba obara obodo obora oboro obrab obrad obudu odaba odara oddba oddur odour odudu oduro ooooo oraba orara orbad ordro orobo orodo oroua oruro ouada ouara ouoro ourba ra-ra raaba raaor raard rabab rabad rabba rabda rabor rabou rabud radar radau rauda ro-ro roadb robab robar robbo robo- robor robur rodau rodbo rodda rodor rooba roodu rorbu rorra rouba roura rubab rubba rubor rubra rudar rudra u-dub uarda uaroo ubobo udara udora uraba urbar uroob urour urrao urubu uuard uurad uuuuu

a-road aaaaba aabroo ababda ababou abadou abaroa abbado abboud abburu abdaru aboard abobra aboord aborad abordo abraod abroad abrood adarra addada addoub adrara aduadu aduard aoudad aourou arabo- ararad ararao araua araura arbour arbra ardara ardour aroura arraba arroba arrour arruda aruaru aurora baabaa baabar baabda baarbu baaror babbar baboua babrru babura baburd badara badaro badaud badbad badbar badoda