a-ak a-ok aaaa aaab aaac aaar aaas aaba aabb aabc aaca aacb aacc aack aaco aacr aacs aaka aaoo aara aarc aaro aars aasa aasc aass abaa abab abac abaj abak abar abas abb- abba abbb abbo abbr abbs abca abcb abcc abcr abcs abjs aboa abob abok aboo abor abos abra abrc abro abrs abs- absa abss acaa acab acac acar acas acba acca accc acco accs acks acoa acor acos acr- acra acrc acro acrr acrs acsa acsc acss ajab ajac ajak ajao ajar ajas ajba ajka ajob ajoo ajss akaa akao akar akas akca akka akko akok akos akr- akra aksa aoba aoca aocs aoks aora aorb aors aoss arab arac arak arar aras arba arbs arc- arca arco arcs arja arjo arka arko arks aroa arob aroo aror aros arr- arra arrc arrk arro arrr arrs ars- arsa arsc arsk arso asaa asab asac asak asao asar asas asba asbo asc- asca ascb ascc ascj asco ascr asja aska asko askr asks asob asoc asok asor asos asra asrc asro asrs assa assc assk asso assr asss baaa baak baar baas baba babb babo babr babs bac- baca bacc back baco bacs baja bajs bak- baka bako bakr baks baos bar- bara barb barc bark baro barr bars basa basc bask baso bass bbas bbbb bbbs bbrc bcaa bcar bcas bcbc bcbs bcca bccc bccs bcor bcos bcra bcrs bcsa bcsc bcss bjcc bjoa boab boac boak boar boas boba bobb bobo bobs boca bock boco bocs bojo boka boko boks boob booc book boor boos bor- bora borj bork boro borr bors bosa bosc bosk boso boss brab brac braj brak brao bras brca brcb brka brkb broa brob broc brok broo bror bros brrr brrs brsb brsr bsaa bsac bsas bscs bsos bsra bssc c-bo caaa caab caac caas caba cabo cabs cac- caca cacc cack caco cacr caja caka caor caos cara carb carc carj cark caro carr cars casa casb casc cask caso casr cass cbac cbar cbbc cbbs cbca cbcc cbcr cbcs cbka cbkj cbko cbkr cbrj cbsa cbsc ccaa ccab ccac ccar ccas ccba ccbc ccca cccb cccc cccs ccjo ccob ccoc ccra ccrc ccrs ccsa ccss cjar cjbc cjbk cjca cjcb cjcj cjcs cjob cjor cjrb cjrc cjrj cjrs cjsb cjss ckac ckbc ckck ckco ckcs ckjr ckjs ckoa ckob ckoc ckoo ckor ckos ckrc cksa cksb ckso coak coas coba cobb cobo cobs coca cock coco cojo cok- coka coko coob cook coos cor- cora corb corc cork coro corr cors cosa cosc coso coss crab crac craj crar cras crbc crca crcc crcr crkc crob croc crok croo cror crsa crss csaa csab csac csak csao csar csas cscb cscc csco cscr cscs cska csks csob csor csos csra csrc csrs cssa cssr j-ro jaak jaar jaas jaba jabo jabr jabs jaca jacc jack jaco jacs jaja jaka jako jara jarc jark jaro jarr jars jasa jasc jask jaso jass jbaa jbar jbob jcbc jccc jcrc jcss jjar jjcc jkcs joab joao joar joba jobo jobs joca jock joco jojo joka jokb jook joor joos jora jork joro josa joso joss jrbr jssr jsss k-os kaaa kaab kaak kaar kaas kaba kabb kabc kabo kabr kacb kacc kaco kacs kaja kajb kajc kajk kajo kajr kaka kakc kakj kakk kako kaks kaoa kaoc kaok kaor kaos kara karb karj kark karo karr kars kas- kasa kasb kasc kask kaso kasr kass kbaa kbab kbac kbak kbar kbas kbba kbbb kbbc kbbk kbbo kbbr kbbs kbca kbcb kbck kbco kbcr kbcs kbja kbjc kbjk kbjs kbkb kbkk kbko kbkr kboa kbob kboc kbok kboo kbos kbra kbrb kbrc kbrj kbrk kbro kbsa kbsb kbsj kbsk kbso kbsr kbss kcaa kcab kcac kcar kcas kcba kcbc kcbk kcbr kcbs kcca kccb kccc kcck kccr kcjb kcjc kcjj kcjk kckc kckj kckk kcko kckr kcob kcor kcos kcrc kcro kcrr kcrs kcsa kcsb kcsc kcsj kcsr kcss kjaa kjac kjak kjas kjbb kjbr kjcb kjcc kjck kjcr kjcs kjjj kjjk kjjo kjjr kjjs kjkj kjkk kjks kjoc kjoj kjok kjor kjrb kjrc kjsa kjsk kjsr kkaa kkac kkar kkba kkbb kkbj kkbo kkbr kkbs kkcb kkcj kkck kkco kkcr kkcs kkjb kkjk kkkj kkkk kkoa kkob kkoj kkoo kkor kkrb kkrc kkrk kkro kkrr kkrs kksa kksj kksr kkss koab koac koak koar koas koba kobb kobc kobk kobo kobr kobs koca kocb kock kocs koja kojb kojo koka kokb kokc kokk koko kokr koks koob kooc kook kooo koor koos kora korb korc kork koro korr kors kos- kosa kosb kosc koso kosr koss krab krac kraj krak krar kras krba krbb krbk krbr krca krcb krcc krco krcs krjb krjc krjk krjo krka krkc krkk krko krkr krks kroa krob kroc krok kroo kror kros krrb krrc krrk krro krrr krrs krsa krsc krsj krsk krsr krss ksab ksac ksak ksar ksas ksba ksbc ksbj ksbr ksbs ksca kscb kscj ksck ksco kscr kscs ksjb ksjc ksjj ksjk ksjo ksjs kska kskb kskk ksko kskr ksks ksob ksoc ksok ksoo ksor ksos ksra ksrb ksro ksrr ksrs kssa ksso kssr ksss oaks oara oars oasc oass obak obas obba obbo obja obkb obok obor obos obra obro obsr obss ocab ocac ocak ocas ocbc occa occc ocks ocos ocra ocro ocrr ocrs ocsa ojak ojas ojok ojos okak okas okja okka okko okok okor okra okro oksa okso ooaa ooak ooba oocr oooo ooos oora oosa orab orac orak orao orar oras orba orbb orbo orbs orca orco orcs orka orko oro- orok oror oros orra orro orrs orsa orsk orso osak osar osas osba osca oscc osco osoo osor osos osro ossa ossb osso raab raaj raak raas raba rabb rabk rabo rabs rac- raca racc rack raco racs raja rajo rajs raka rakk raob raoc raok raos rara rarb rark raro rars rasa rasc rask raso rass rbbb rbbr rbbs rbss rcac rcas rcbc rcbo rccb rccc rccs rcos rcsa rcsc rcss rkos rkss roab roak