a-a a-b aaa aab aak aam aao aar aas ab- aba abb abk abm abo abr abs aka akb akk akm ako akr aks ama amb amk amm amo amr ams aoa aob aok aom aoo aor aos ar- ara arb ark arm aro arr ars as- asa asb ask asm aso asr ass baa bab bak bam bao bar bas bba bbb bbk bbm bbo bbr bbs bka bkb bkk bkm bko bkr bks bma bmb bmk bmm bmo bmr bms boa bob bok bom boo bor bos bra brb brk brm bro brr brs bsa bsb bsk bsm bso bsr bss ka- kaa kab kak kam kao kar kas kba kbb kbk kbm kbo kbr kbs kkb kkk kkm kkr kks kma kmb kmk kmm kmo kms koa kob kok kom koo kor kos kra krk kro krr krs ksa ksb ksk ksm kso ksr kss m-o m-r maa mab mak mam mao mar mas mba mbb mbk mbm mbo mbr mbs mka mkb mkk mkm mko mkr mks mma mmb mmk mmm mmo mmr mms moa mob mok mom moo mor mos mra mrb mrk mrm mro mrr mrs msa msb msk msm mso msr mss oaa oab oak oam oao oar oas ob- oba obb obk obm obo obr obs oka okb okk oko okr oks om- oma omb omm omo omr oms oo- ooa oob ook oom ooo oor oos or- ora orb ork orm oro orr ors os- osa osb osk osm oso osr oss ra- raa rab rak ram rao rar ras rba rbb rbk rbm rbo rbr rbs rkb rkk rkm rko rks rma rmb rmm rmo rmr rms roa rob rok rom roo ror ros rra rrb rrk rrm rrr rrs rsa rsb rsk rsm rso rsr rss saa sab sak sam sao sar sas sba sbb sbk sbm sbo sbr sbs sk- ska skb skk skm sko skr sks sma smb smk smm smo smr sms soa sob sok som soo sor sos sr- sra srb srk srm sro srr srs ss- ssa ssb ssk ssm sso ssr sss

a-ak a-ok aaaa aaab aaam aaar aaas aaba aabb aabm aaka aama aamb aamo aamr aams aaoo aara aarm aaro aars aasa aasm aass abaa abab abak abam abar abas abb- abba abbb abbo abbr abbs abma abmb abms aboa abob abok aboo abor abos abra abro abrs abs- absa abss akaa akam akao akar akas akka akko akok akom akos akr- akra aksa amaa amam amar amas amb- amba ambo ambr ambs amka amm- amma ammo amob amok amoo amor amos amra amro amsa amso amss aoba aoks aoma aora aorb aors aoss arab arak aram arar aras arba arbs arka arko arks arma armm armo arms aroa arob arom aroo aror aros arr- arra arrk arro arrr arrs ars- arsa arsk arso asaa asab asak asam asao asar asas asba asbm asbo aska asko askr asks asma asmm asmr asms asob asok asom asor asos asra asrm asro asrs assa assk asso assr asss baaa baak baam baar baas baba babb babm babo babr babs bak- baka bako bakr baks bama bamb bamm bams baos bar- bara barb bark barm baro barr bars basa bask baso bass bbas bbbb bbbs bmaa boab boak boar boas boba bobb bobo bobs boka boko boks boma bomb boms boob book boom boor boos bor- bora bork borm boro borr bors bosa bosk bosm boso boss brab brak bram brao bras brka brkb broa brob brok brom broo bror bros brrm brrr brrs brsb brsr bsaa bsam bsas bsms bsos bsra bsrm bssm k-os kaaa kaab kaak kaam kaar kaas kaba kabb kabo kabr kaka kakk kakm kako kaks kam- kama kamb kamm kamo kamr kams kaoa kaok kaor kaos kara karb kark karm karo karr kars kas- kasa kasb kask kasm kaso kasr kass kbaa kbab kbak kbam kbar kbas kbba kbbb kbbk kbbm kbbo kbbr kbbs kbkb kbkk kbko kbkr kbmb kbmo kbmr kbms kboa kbob kbok kboo kbos kbra kbrb kbrk kbro kbsa kbsb kbsk kbsm kbso kbsr kbss kkaa kkam kkar kkba kkbb kkbo kkbr kkbs kkkk kkma kkmk kkmo kkmr kkms kkoa kkob kkoo kkor kkrb kkrk kkro kkrr kkrs kksa kksm kksr kkss kmak kmam kmas kmbr kmbs kmkk kmko kmks kmmk kmmm kmmo kmmr kmms kmoa kmob kmok kmom kmor kmrb kmro kmrr kmrs kmsa kmsb kmso kmsr kmss koab koak koar koas koba kobb kobk kobo kobr kobs koka kokb kokk koko kokr koks koma komb komo komr koms koob kook kooo koor koos kora korb kork koro korr kors kos- kosa kosb koso kosr koss krab krak kram krar kras krba krbb krbk krbm krbr krka krkk krko krkr krks krma krmb krmo krmr krms kroa krob krok krom kroo kror kros krrb krrk krrm krro krrr krrs krsa krsk krsr krss ksab ksak ksam ksar ksas ksba ksbr ksbs kska kskb kskk ksko kskr ksks ksma ksmb ksmm ksmo ksmr ksms ksob ksok ksom ksoo ksor ksos ksra ksrb ksrm ksro ksrr ksrs kssa kssm ksso kssr ksss maaa maak maam maar maas maba mabo mabs maka mako maks mama mamo mams maor maos mar- mara mark marm maro marr mars masa mask masr mass mbam mbas mbba mbbs mbms mbrs mkak mkks mksm mmaa mmab mmar mmas mmmm mmms mmor moaa moab moam moar moas moba mobb mobo mobs moka moko moma momo moms mooa moob mook moor moos mora morb mork moro mors mosa mosk moso moss mras mrbb mrbm mrbs mrkr mrsa msaa msar msas msba msma msmb msmm msms msoa msor msra msrb mssa mssm mssr oaks oama oams oara oars oass obak obas obba obbo obkb obok obor obos obra obro obsr obss okak okam okas okka okko okmo okok okom okor okra okro oksa okso omak omam omao omar omas ombo omma omo- omoa omoo omor omra omro omsa omsk ooaa ooak ooba ooma ooms oooo ooos oora oosa orab orak oram orao orar oras orba orbb