a-ak a-ii a-ok aaaa aaab aaac aaai aaar aaba aabb aabc aabi aaca aacb aacc aaci aack aaco aacr aaib aaic aaii aaka aaoo aara aarc aari aaro abaa abab abac abai abak abar abb- abba abbb abbi abbo abbr abca abcb abcc abci abcr abia abib abic abir aboa abob abok aboo abor abra abrc abri abro acaa acab acac acai acar acba acca accc acci acco aci- acia acic acir acoa acor acr- acra acrc acri acro acrr aiai aiba aibo aica aicc aicr aiia aiib aiic aiir aika aiki aiko aioc aioi aira airi airo akaa akai akao akar akca akia akik akio akir akka akki akko akok akr- akra aoba aoca aoki aora aorb arab arac arai arak arar arba arbi arc- arca arci arco aria arib arii arik ario arka arki arko aroa arob aroi aroo aror arr- arra arrc arri arrk arro arrr ba-i baaa baak baar baba babb babi babo babr bac- baca bacc baci back baco baia baib baic baik baio bair bak- baka baki bako bakr bar- bara barb barc bari bark baro barr bbbb bbci bbrc bcaa bcar bcbc bcca bccc bcci bcia bcor bcra biak biao biar biba bibb bibi bibo bica bicc bici bick bico biko bio- bioc bioi bira birb biri birk biro birr boab boac boai boak boar boba bobb bobi bobo boca bock boco boi- boii boka boki boko boob booc book boor bor- bora bori bork boro borr brab brac brai brak brao brca brcb bria bric brik brio brka brkb broa brob broc brok broo bror brrr c-bo caaa caab caac caba cabi cabo cac- caca cacc caci cack caco cacr caia caib caic caik caio cair caka caoi caor cara carb carc cari cark caro carr cbac cbar cbbc cbca cbcc cbcr cbia cbir cbka cbko cbkr ccaa ccab ccac ccai ccar ccba ccbc ccca cccb cccc ccci ccic ccii ccir ccob ccoc ccra ccrc ccri ciaa ciak ciao ciar ciba cibc cibi cibo cica cicc cici cico cicr ciia ciii cika ciko cikr ciob cior cira cirb circ ciri cirk ciro cirr ckac ckbc ckbi ckck ckco ckoa ckob ckoc ckoi ckoo ckor ckrc coai coak coba cobb cobi cobo coca cock coco coia coir cok- coka coko coob cook cor- cora corb corc cori cork coro corr crab crac crai crar crbc crca crcc crcr cria crib cric crik crkc crob croc crok croo cror iaaa iaac iaai iaba iaca iacc iacr iaia iara iarc ibac ibar ibca ibia ibra ibrc ibri ibro icaa icab icac icai icao icar icbc icca iccb iccc icci icco iccr icoc icor icra icrc icrr iiac iica iiii iiio iioi iioo iira iirc ikar ikki ikko ikoo ikra ikri ioba iobi ioci ioii ioio ioko iooi iooo iora iori irac irai irak irao irar irca ircc iri- iria iric irio irka irki irob iroc irra irrc irri k-ci kaaa kaab kaai kaak kaar kaba kabb kabc kabi kabo kabr kacb kacc kaci kaco kaia kaib kaic kaii kaik kaio kair kaka kakc kaki kakk kako kaoa kaoc kaoi kaok kaor kara karb kari kark karo karr kbaa kbab kbac kbai kbak kbar kbba kbbb kbbc kbbi kbbk kbbo kbbr kbca kbcb kbci kbck kbco kbcr kbia kbib kbic kbik kbio kbkb kbkk kbko kbkr kboa kbob kboc kboi kbok kboo kbra kbrb kbrc kbri kbrk kbro kcaa kcab kcac kcai kcar kcba kcbc kcbi kcbk kcbr kcca kccb kccc kcci kcck kccr kcic kcii kcir kckc kckk kcko kckr kcob kcor kcrc kcri kcro kcrr kiab kiac kiai kiar kiba kibb kibc kibi kibo kibr kica kicb kicc kick kicr kiia kiic kiii kiik kika kikc kiki kikk kiko kikr kioa kioc kioi kiok kioo kira kirb kirc kiri kirk kiro kirr kkaa kkac kkai kkar kkba kkbb kkbi kkbo kkbr kkcb kkci kkck kkco kkcr kkia kkic kkik kkkk kkoa kkob kkoo kkor kkrb kkrc kkrk kkro kkrr koab koac koai koak koar koba kobb kobc kobi kobk kobo kobr koca kocb koci kock koii koir koka kokb kokc koki kokk koko kokr koob kooc kooi kook kooo koor kora korb korc kori kork koro korr krab krac krai krak krar krba krbb krbi krbk krbr krca krcb krcc krci krco kria krib krik krio krka krkc krki krkk krko krkr kroa krob kroc kroi krok kroo kror krrb krrc krri krrk krro krrr oaic oara obai obak obba obbo obia obkb oboi obok obor obra obri obro ocab ocac ocak ocbc occa occc occi ocra ocro ocrr oiba oici oick oiii oiko oira okak okia okic okir okka okko okok okor okra okro ooaa ooak ooba oobi oocr ooia oooo oora orab orac orai orak orao orar orba orbb orbi orbo orca orci orco ori- oria oric orio orka orko oro- orok oror orra orri orro raab raak raba rabb rabi rabk rabo rac- raca racc raci rack raco raia raic raii raik rair raka raki rakk raob raoc raok rara rarb rari rark raro rbbb rbbr rcac rcbc rcbo rccb rccc rcic riaa riab riai riak rib- riba ribo rica ricc rick rico riia rika riki rikk riri roab roak roar rob- roba robb robi robo roca rocc rock roco roia roik roio roir roka roki rokk roko rokr roob rooi rook roor rora rorc rori rork roro rrrr