a-ak a-do a-ok a-wa aaaa aaab aaac aaad aaar aaba aabb aabc aabd aabw aaca aacb aacc aacd aack aaco aacr aada aadc aaka aaoo aaow aara aarc aard aaro aaww abaa abab abac abad abak abar abaw abb- abba abbb abbo abbr abca abcb abcc abcd abcr abcw abda abdo aboa abob abod abok aboo abor abow abra abrc abro abwa abwr acaa acab acac acad acar acba acca accc accd acco acda acdb acdc ackd ackw acoa acod acor acow acr- acra acrc acro acrr acwa acww adaa adab adac adad adak adao adar adaw adba adbc adcc adda addc addd addo addr adob adoc adod adok adoo ador adra adro adwa akaa akao akar akca akka akko akok akr- akra akwa aoba aoca aora aorb aowd arab arac arad arak arar araw arba arc- arca arco arda ardc ardo arka arko aroa arob arod aroo aror arow arr- arra arrc arrk arro arrr arwa awac awad awar awka awoo awow awro awwa baaa baad baak baar baba babb babo babr bac- baca bacc back baco bada badb badd bado badr bak- baka bako bakr bar- bara barb barc bard bark baro barr baw- bawd bawk bbad bbbb bbdd bbdo bbrc bbwc bbwr bcaa bcar bcbc bcca bccc bcda bcor bcra bd-r bdbc bddc boab boac boad boak boar boba bobb bobo bobw boca bock boco boda bodb bodo boka boko boob booc bood book boor boow bor- bora bord bork boro borr borw bowa bowd bowk bowr brab brac brad brak brao braw brca brcb brcw brda brdo brka brkb broa brob broc brod brok broo bror brow brrr bwaa bwoc c-bo c-cd caaa caab caac caba cabo cac- caca cacc cack caco cacr cacw cada cadc cadd cado cadr cadw caka caod caor cara carb carc card cark caro carr cawk cbac cbar cbbc cbca cbcc cbcr cbdb cbdc cbdo cbka cbko cbkr cbrd cbwa cbwd ccaa ccab ccac ccad ccar ccba ccbc ccca cccb cccc ccdc ccdr cckw ccob ccoc ccod ccow ccra ccrc cd-r cdaa cdac cdad cdba cdda cddb cddr ckac ckbc ckck ckco ckcw ckdo ckoa ckob ckoc ckoo ckor ckrc ckrd ckrw ckwd ckwr ckww coad coak coba cobb cobo coca cock coco coda codd cok- coka coko coob cood cook cor- cora corb corc cord cork coro corr cowd crab crac crar craw crbc crca crcc crcr crda crdc crkc crob croc crod crok croo cror crow crwd cwac cwrw d-bo daab daad daar daba dabb dabo daca dada dado daka dako dara darb darc dard dark daro darr dawa dawd dawk dawo dawr dbar dbcc dcbc dcca dccb dccc dcdb dcra dcrk dddd ddoc ddrc dkba dkdc doab doak doar doba dobb doca dock doco dod- doda dodd dodo doka doko doob dood dook door dora dorc dord dork doro dorr dowa dowb dowd dowk dowr draa drab drac drad drak drar draw drba drbc drca drda drkw drob drod drow drra dwac dwad dwar dwbr dwcw dwdd dwkc dwok dwor dwrd dwrk dwrw dwww kaaa kaab kaak kaar kaba kabb kabc kabd kabo kabr kabw kacb kacc kacd kaco kacw kad- kada kadd kado kadr kaka kakc kakk kako kaoa kaoc kaok kaor kaow kara karb kard kark karo karr karw kaw- kawa kawc kawk kawo kaww kbaa kbab kbac kbad kbak kbar kbba kbbb kbbc kbbd kbbk kbbo kbbr kbbw kbca kbcb kbck kbco kbcr kbcw kbdb kbdo kbdr kbkb kbkk kbko kbkr kbkw kboa kbob kboc kbod kbok kboo kbow kbra kbrb kbrc kbrd kbrk kbro kbrw kbwa kbwb kbwc kbwd kbww kcaa kcab kcac kcad kcar kcaw kcba kcbc kcbd kcbk kcbr kcbw kcca kccb kccc kccd kcck kccr kcda kcdc kcdd kcdr kckc kckk kcko kckr kcob kcor kcow kcrc kcro kcrr kcrw kcwa kcwb kcwc kcwd kcwk kcwr kdaa kdab kdac kdad kdak kdao kdar kdbb kdbr kdca kdcc kdcd kdco kdcr kddb kddc kddd kddk kddr kdka kdkb kdkd kdkk kdko kdkr kdoc kdok kdow kdrb kdro kdrw kdwa kdwd kkaa kkac kkar kkaw kkba kkbb kkbd kkbo kkbr kkcb kkcd kkck kkco kkcr kkcw kkda kkdc kkdd kkdo kkkk kkoa kkob kkoo kkor kkow kkrb kkrc kkrk kkro kkrr kkwb kkwd kkwk koab koac koak koar koba kobb kobc kobk kobo kobr koca kocb kocd kock kocw koda kodk kodo koka kokb kokc kokk koko kokr koob kooc kook kooo koor kora korb korc kord kork koro korr kowa kowb kowd kowr krab krac krad krak krar kraw krba krbb krbd krbk krbr krbw krca krcb krcc krcd krco krcw krda krdc krdd krdo krdr krka krkc krkd krkk krko krkr krkw kroa krob kroc krod krok kroo kror krow krrb krrc krrk krro krrr krrw krwa krwb krwc krwk krwr kwab kwac kwad kwak kwar kwaw kwbc kwbw kwca kwcd kwck kwcr kwdc kwdd kwdk kwdr kwdw kwka kwkb kwkc kwkk kwkr kwkw kwoa kwoc kwod kwok kwor kwow kwrb kwrd kwrk kwro kwrr kwrw kwwk kwwr oara obad obak obba obbo obkb obok obor obra obro ocab ocac ocad ocak ocbc occa occc ocra ocro ocrr odac odbo odda oddd odoo odor odra okak okka okko okok okor okra okro ooaa ooak ooba oocr ooda oooo oora oord orab orac orad orak orao orar orba orbb orbo orca orco orda ordo orka orko oro- orok oror orra orro orwa orwo owar owda owow owwa raab raad raak raba rabb rabk rabo rac- raca racc rack raco rada radc radd rado radr raka rakk raob raoc raok rara rarb rark raro rawa rawk rawr raww rbbb rbbr rcac rcbc rcbo rccb rccc rcdc rcrd rdac rdoc roab road roak roar rob- roba robb robo roca rocc rock roco roda rodd rodo rodw roka rokk roko rokr roob rood rook roor rora rorc rork roro rowa rowb rowd rowk rowr roww rrad rrrr waaa waac waad waao waar waaw waba wabb wabc wabd wabk wabo wabr wabw waca wacb wacc wacd wack waco wada wadb wadc wadd wadk wado wadr waka