a-a a-b aaa aab aam aao aar aas aau ab- aba abb abm abo abr abs abu ama amb amm amo amr ams amu aoa aob aom aoo aor aos aou ar- ara arb arm aro arr ars aru as- asa asb asm aso asr ass asu au- aua aub aum auo aur aus b-u baa bab bam bao bar bas bau bba bbb bbm bbo bbr bbs bbu bma bmb bmm bmo bmr bms bmu boa bob bom boo bor bos bou bra brb brm bro brr brs bru bsa bsb bsm bso bsr bss bsu bua bub bum buo bur bus buu m-o m-r maa mab mam mao mar mas mau mba mbb mbm mbo mbr mbs mbu mma mmb mmm mmo mmr mms mmu moa mob mom moo mor mos mou mra mrb mrm mro mrr mrs mru msa msb msm mso msr mss msu mua mub mum mur mus muu oaa oab oam oao oar oas oau ob- oba obb obm obo obr obs obu om- oma omb omm omo omr oms omu oo- ooa oob oom ooo oor oos or- ora orb orm oro orr ors oru os- osa osb osm oso osr oss osu ou- oua oum ouo our ous ra- raa rab ram rao rar ras rau rba rbb rbm rbo rbr rbs rbu rma rmb rmm rmo rmr rms roa rob rom roo ror ros rou rra rrb rrm rrr rrs rru rsa rsb rsm rso rsr rss rsu rua rub rum ruo rur rus ruu saa sab sam sao sar sas sau sba sbb sbm sbo sbr sbs sbu sma smb smm smo smr sms smu soa sob som soo sor sos sou sr- sra srb srm sro srr srs ss- ssa ssb ssm sso ssr sss ssu sua sub sum suo sur sus suu ua- uaa uab uam uao uar uas uau uba ubb ubo ubr ubs ubu um- uma umb umm umo umr ums umu uoa uob uom uoo uor uos ur- ura urb urm uro urr urs uru usa usb usm uso usr uss usu uua uum uur uus uuu

-ous aaaa aaab aaam aaar aaas aaba aabb aabm aama aamb aamo aamr aams aaoo aara aarm aaro aars aaru aasa aasm aass aasu aaus abaa abab abam abar abas abau abb- abba abbb abbo abbr abbs abma abmb abms aboa abob aboo abor abos abou abra abro abrs abs- absa abss absu abua abum abus amaa amam amar amas amb- amba ambo ambr ambs ambu amm- amma ammo ammu amob amoo amor amos amou amra amro amsa amso amss amua amum amur aoba aoma aora aorb aors aoss aous arab aram arar aras arau arba arbs arma armm armo arms armu aroa arob arom aroo aror aros arr- arra arro arrr arrs arru ars- arsa arso arsu arua arub arum asaa asab asam asao asar asas asau asba asbm asbo asbu asma asmm asmr asms asob asom asor asos asou asra asrm asro asrs asru assa asso assr asss assu asub asum asur asus auaa auma aur- aura auro ausa ausm ausu baaa baam baar baas baba babb babm babo babr babs babu bama bamb bamm bams bamu baos bar- bara barb barm baro barr bars baru basa baso bass basu bau- baum baur bbas bbau bbbb bbbs bmaa bmus boab boar boas boba bobb bobo bobs bobu boma bomb boms bomu boob boom boor boos bor- bora borm boro borr bors boru bosa bosm boso boss bosu boua boum bour bous brab bram brao bras brau broa brob brom broo bror bros brou brrm brrr brrs brsb brsr brum brus bsaa bsam bsas bsms bsos bsra bsrm bssm buar buba bubb bubo bubs bubu bum- buma bumb bums bur- bura burb burm buro burr burs buru busa buss busu buus maaa maam maar maas maba mabo mabs mabu mama mamo mams mamu maor maos mar- mara marm maro marr mars maru masa masr mass masu maua maum maur maus mbam mbas mbba mbbs mbms mbou mbrs mbus mmaa mmab mmar mmas mmmm mmms mmor mmsu mmus moaa moab moam moar moas moba mobb mobo mobs moma momo moms momu mooa moob moor moos mora morb moro mors moru mosa moso moss mosu mour mous mras mrbb mrbm mrbs mrsa msaa msar msas msau msba msma msmb msmm msms msmu msoa msor msra msrb mssa mssm mssr msus muar mubo mubs muma mumm mumo mums mumu muos mura muro murr murs muru musa muso muss musu oaau oama oams oara oars oass obas obba obbo obor obos obra obro obsr obss obus omam omao omar omas ombo ombu omma omo- omoa omoo omor omra omro omsa omuo omus ooaa ooba ooma ooms oooo ooos oora oosa oous orab oram orao orar oras orba orbb orbo orbs orbu orma ormo oro- orom oror oros orra orro orrs orsa orso orsu orub orum orus osam osar osas osba osm- osmo osoo osor osos osro ossa ossb osso ossu osum oubs ouma our- oura ouro ours ousa ouu- raab raam raas raba rabb rabo rabs rabu rama ramb ramm ramo rams ramu raob raom raos rara rarb raro rars rasa rasm raso rass rasu raua raub raum raus rbbb rbbr rbbs rbms rbss rmas rmbs roab roam roar roas rob- roba robb robo robs robu roma romb romm romo roms roob room roor roos rora roro roru rosa roso ross roua roub roum rous rras rrrr rrum rsaa rsma rsos rssa rsua rsum ruas ruba rubb rubs rubu ruma rumb rumm rumo rums rura ruro rurs ruru rusa ruso russ rusu s-os saab saam saar saas saba sabb sabo sabr sabs sabu sam- sama samm samo sams samu saor saos saou sara sarm saro sarr sars saru sasa sasm saso sass saua saum saur saus sbaa sbar sbas sbbs sbma sbor sbsa sbus smaa smas smba smos smss smur smus soam soar soas soba sobo sobr sobs sobu soma somb somm somo soom soor soos sora sorb sorm soro sorr