-ana a-ak a-ok aaaa aaab aaac aaan aaar aaas aaba aabb aabc aaca aacb aacc aack aacn aaco aacr aacs aaka aana aaon aaoo aara aarc aaro aars aasa aasc aass abaa abab abac abak aban abar abas abb- abba abbb abbo abbr abbs abca abcb abcc abcn abcr abcs aboa abob abok abon aboo abor abos abra abrc abro abrs abs- absa abss acaa acab acac acan acar acas acba acca accc acco accs acks acoa acon acor acos acr- acra acrc acro acrr acrs acsa acsc acss akaa akan akao akar akas akca akka akko akna akok akon akos akr- akra aksa ana- anaa anab anac anak anan anao anar anas anba anbb anbo anca ancc anco ank- anka anko anna annb anno anns ano- anoa anon anor anos anrc ansa anso aoba aoca aocs aoks aonb aono aora aorb aorn aors aoss arab arac arak aran arar aras arba arbs arc- arca arco arcs arka arko arks arna arnk arno arns aroa arob aron aroo aror aros arr- arra arrc arrk arro arrr arrs ars- arsa arsc arsk arso asaa asab asac asak asan asao asar asas asba asbo asc- asca ascb ascc asco ascr aska asko askr asks asnc asno asob asoc asok ason asor asos asra asrc asro asrs assa assc assk assn asso assr asss baaa baak baan baar baas baba babb babo babr babs bac- baca bacc back bacn baco bacs bak- baka bako bakr baks bana banc bank bann bano banr bans baon baos bar- bara barb barc bark barn 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 bcsn bcss bnas bnoc bnor bnrr bnss boab boac boak boan boar boas boba bobb bobo bobs boca bock boco bocs boka bokn boko boks bona bonc bonk bonn bono bons boob booc book boon boor boos bor- bora bork born boro borr bors bosa bosc bosk bosn boso boss brab brac brak bran brao bras brca brcb brka brkb brna brno brns broa brob broc brok bron broo bror bros brrr brrs brsb brsr bsaa bsac bsas bscs bsns bson bsos bsra bssc c-bo caaa caab caac caan caas caba cabo cabs cac- caca cacc cack caco cacr caka cana canc cank cann cano cans caor caos cara carb carc cark carn caro carr cars casa casb casc cask caso casr cass cbac cbar cbbc cbbs cbca cbcc cbcn cbcr cbcs cbka cbkn cbko cbkr cbna cbrn cbsa cbsc cbsn ccaa ccab ccac ccar ccas ccba ccbc ccbn ccca cccb cccc cccs ccna ccnb ccnc ccnr ccns ccob ccoc ccra ccrc ccrs ccsa ccsn ccss ckac ckan ckbc ckck ckco ckcs cknb cknc ckns ckoa ckob ckoc ckoo ckor ckos ckrc cksa cksb ckso cnaa cnac cnas cnbc cnco cnna cnrc cnrr cnsa cnss coak coan coas coba cobb cobo cobs coca cock coco cok- coka coko con- cona conc conk conn cono cons coob cook coon coos cor- cora corb corc cork corn coro corr cors cosa cosc coso coss crab crac cran crar cras crbc crca crcc crcr crkc crna crns crob croc crok cron 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 k-os kaaa kaab kaak kaan kaar kaas kaba kabb kabc kabo kabr kacb kacc kaco kacs kaka kakc kakk kakn kako kaks kana kanb kann kano kans kaoa kaoc kaok kaon kaor kaos kara karb kark karn karo karr kars kas- kasa kasb kasc kask kasn kaso kasr kass kbaa kbab kbac kbak kbar kbas kbba kbbb kbbc kbbk kbbo kbbr kbbs kbca kbcb kbck kbco kbcr kbcs kbkb kbkk kbko kbkr kbna kbnn kbno kbnr kboa kbob kboc kbok kbon kboo kbos kbra kbrb kbrc kbrk kbrn kbro kbsa kbsb kbsk kbsn kbso kbsr kbss kcaa kcab kcac kcar kcas kcba kcbc kcbk kcbr kcbs kcca kccb kccc kcck kccr kckc kckk kckn kcko kckr kcnb kcno kcnr kcns kcob kcon kcor kcos kcrc kcrn kcro kcrr kcrs kcsa kcsb kcsc kcsn kcsr kcss kkaa kkac kkan kkar kkba kkbb kkbn kkbo kkbr kkbs kkcb kkck kkcn kkco kkcr kkcs kkkk kknb kknn kkno kkns kkoa kkob kkon kkoo kkor kkrb kkrc kkrk kkrn kkro kkrr kkrs kksa kksn kksr kkss knaa knab knac knan knar knas knba knbb knbc knbn knbr knca kncb knck kncn knco kncr knkk knnb knnk knnr knns knob knoc knok knon knor knrb knrk knro knrs knsa knsb knsc knsk knsn knso knsr knss koab koac koak koan koar koas koba kobb kobc kobk kobn kobo kobr kobs koca kocb kock kocn kocs koka kokb kokc kokk kokn koko kokr koks kona konc konk kono koob kooc kook koon kooo koor koos kora korb korc kork korn koro korr kors kos- kosa kosb kosc koso kosr koss krab krac krak kran krar kras krba krbb krbk krbr krca krcb krcc krcn krco krcs krka krkc krkk krkn krko krkr krks krna krnb krnk krnn krno kroa krob kroc krok kroo kror kros krrb krrc krrk krrn krro krrr krrs krsa krsc krsk krsn krsr krss ksab ksac ksak ksan ksar ksas ksba ksbc ksbn ksbr ksbs ksca kscb ksck kscn ksco kscr kscs kska kskb kskk kskn ksko kskr ksks ksna ksnb ksnc ksnk ksnn ksnr ksns ksob ksoc ksok kson ksoo ksor ksos ksra ksrb ksrn ksro ksrr ksrs kssa kssn ksso kssr ksss naaa naab naac naan naar naas naba nabc nabk nabo nabs naca nacc nack naco nacs naka nako naks nan- nana nanb nann nano nans naoc naor naos nara narc nark narn naro narr nars nas- nasa nasb nasc nask naso nasr nass nbaa nbak nbar nbas nbbc nbbo nbca nbcc nbco nbcs ncaa ncac ncar ncba ncbc ncbs ncca nccc nccn nccr nccs ncna ncnc ncoa ncoc ncor ncos ncra ncrc ncsa ncsc ncss nkok nkor nnnn nnos nnsa