a-ak a-do a-ok aaaa aaab aaac aaad aaal aaar aaba aabb aabc aabd aabl aaca aacb aacc aacd aack aacl aaco aacr aada aadc aaka aala aalc aald aall aalo aaoo aara aarc aard aaro abaa abab abac abad abak abal abar abb- abba abbb abbo abbr abca abcb abcc abcd abcl abcr abda abdo abla ablo aboa abob abod abok abol aboo abor abra abrc abro acaa acab acac acad acar acba acbl acca accc accd acco acda acdb acdc ackd acla aclc aclr acoa acod acol acor acr- acra acrc acro acrr adaa adab adac adad adak adal adao adar adba adbc adcc adda addc addd addl addo addr adob adoc adod adok adoo ador adra adro akaa akal akao akar akca akka akko aklo akok akr- akra alaa alac alad alak alal alao alar alb- alba albc albo alca alcc alco ald- alda aldl aldo alk- alka alkb alkd alko all- alla alll allo allr aloa aloc alod alok alol aloo alor alro aoba aoca aola aora aorb arab arac arad arak aral arar arba arc- arca arco arda ardc ardl ardo arka arko arla arlo aroa arob arod aroo aror arr- arra arrc arrk arro arrr baaa baad baak baal baar baba babb babo babr bac- baca bacc back baco bada badb badd bado badr bak- baka bakl bako bakr bala balc bald balk ball balo baol bar- bara barb barc bard bark baro barr bbad bbbb bbdd bbdo bblb bbrc bcaa bcar bcbc bcca bccc bccl bcda bcor bcra bd-r bdbc bddc blaa blab blac blad blak bldc bldr blkb blkd blob bloc blod blok bloo blrc boab boac boad boak boal boar boba bobb bobo boca bock boco boda bodb bodo boka boko bola bold bolk boll bolo boob booc bood book bool boor bor- bora bord bork boro borr brab brac brad brak brao brca brcb brda brdo brka brkb broa brob broc brod brok brol broo bror brrr c-bo c-cd caaa caab caac caal caba cabo cac- caca cacc cack caco cacr cada cadc cadd cado cadr caka cala calc cald calk call calo caod caol caor cara carb carc card cark carl caro carr cbac cbal cbar cbbc cbca cbcc cbcl cbcr cbdb cbdc cbdo cbka cbkl cbko cbkr cblb cblc cbol cbrd cbrl ccaa ccab ccac ccad ccar ccba ccbc ccca cccb cccc cccl ccdc ccdr ccla cclc ccob ccoc ccod ccra ccrc ccrl cd-r cdaa cdac cdad cdba cdda cddb cddl cddr ckac ckbc ckck ckcl ckco ckdo ckoa ckob ckoc ckoo ckor ckrc ckrd clab clad clar clcd cldc cldr clob clod clok cloo clor clra clrd clro coad coak coal coba cobb cobo coca cock coco coda codd codl cok- coka coko col- cola colb cold colk coll colo coob cood cook cool cor- cora corb corc cord cork corl coro corr crab crac crar crbc crca crcc crcr crda crdc crkc crkl crob croc crod crok crol croo cror d-bo daab daad daal daar daba dabb dabo daca dada dado daka dako dala dalk dall dalo dara darb darc dard dark darl daro darr dbar dbcc dcbc dcca dccb dccc dccl dcdb dcra dcrk dddd ddlc ddoc ddrc dkba dkdc dlab dlbd dlco doab doak doal doar doba dobb dobl doca dock doco dod- doda dodd dodo doka doko dola dold dolk doll dolo doob dood dook dool door dora dorc dord dork doro dorr draa drab drac drad drak drar drba drbc drca drda drob drod drol drra k-lo kaaa kaab kaak kaal kaar kaba kabb kabc kabd kabo kabr kacb kacc kacd kacl kaco kad- kada kadd kadl kado kadr kaka kakc kakk kako kala kalb kalc kald kalk kall kalo kaoa kaoc kaok kaol kaor kara karb kard kark karl karo karr kbaa kbab kbac kbad kbak kbal kbar kbba kbbb kbbc kbbd kbbk kbbl kbbo kbbr kbca kbcb kbck kbcl kbco kbcr kbdb kbdl kbdo kbdr kbkb kbkk kbkl kbko kbkr kbla kblb kbld kbll kblo kblr kboa kbob kboc kbod kbok kboo kbra kbrb kbrc kbrd kbrk kbrl kbro kcaa kcab kcac kcad kcal kcar kcba kcbc kcbd kcbk kcbl kcbr kcca kccb kccc kccd kcck kccl kccr kcda kcdc kcdd kcdr kckc kckk kckl kcko kckr kcla kclc kclk kcll kclr kcob kcol kcor kcrc kcro kcrr kdaa kdab kdac kdad kdak kdal kdao kdar kdbb kdbl kdbr kdca kdcc kdcd kdco kdcr kddb kddc kddd kddk kddl kddr kdka kdkb kdkd kdkk kdko kdkr kdla kdlb kdlc kdld kdll kdlo kdlr kdoc kdok kdrb kdrl kdro kkaa kkac kkal kkar kkba kkbb kkbd kkbl kkbo kkbr kkcb kkcd kkck kkcl kkco kkcr kkda kkdc kkdd kkdl kkdo kkkk kklb kklc kkld kkll kklo kkoa kkob kkol kkoo kkor kkrb kkrc kkrk kkrl kkro kkrr klaa klab klac klad klak klal klar klbb klbc klbd klbl klca klcb klcc klcd klck klcl klcr kldc kldd kldr klka klkc klkk klkl klko klkr klla kllb kllc kllk kloa klob kloc klok klol kloo klor klrc klrd klrk klrr koab koac koak koal koar koba kobb kobc kobk kobo kobr koca kocb kocd kock koda kodk kodl kodo koka kokb kokc kokk koko kokr kola kolb kolc kold kolk koll kolo kolr koob kooc kook kool kooo koor kora korb korc kord kork korl koro korr krab krac krad krak kral krar krba krbb krbd krbk krbl krbr krca krcb krcc krcd krcl krco krda krdc krdd krdo krdr krka krkc krkd krkk krko krkr krla krlc krld kroa krob kroc krod krok krol kroo kror krrb krrc krrk krrl krro krrr laaa laac laad laak laal laar laba labo labr laca lacc lack lacl laco lada ladd lado laka lala lald lall lalo lara larb larc lard lark larr lbar lbcc lblr lcac lcad lcbc lcca lccc lcdd lcdr lcor lcra lcrd lcrl lkab lkal llao llcc lldb lldc lllc llll lloa lloc llod lloo loac load loar lob- loba lobb lobo loca locc lock loco loda loka lokk loko lola