a-ak a-be a-ok a-wa aaaa aaab aaac aaae aaar aaba aabb aabc aabw aaca aacb aacc aace aack aaco aacr aaea aaec aaka aake aaoe aaoo aaow aara aarc aare aaro aaww abaa abab abac abae abak abar abaw abb- abba abbb abbe abbo abbr abca abcb abcc abcr abcw abec abee aber aboa abob abok aboo abor abow abra abrc abro abwa abwe abwr acaa acab acac acae acar acba acca accc acce acco ace- acea acec acek acer acke ackw acoa acoe acor acow acr- acra acrc acre acro acrr acwa acww aeac aecb aeer aeka aer- aera aerc aero akaa akae akao akar akca akee aker akka akko akok akr- akra akre akwa aoba aoca aoce aora aorb arab arac arae arak arar araw arba arbe arc- arca arce arco area arec aree arek areo arew arka arke arko aroa arob aroe aroo aror arow arr- arra arrc arre arrk arro arrr arwa arwe awac awae awar awbe awe- aweb awee awer awka awoo awow awre awro awwa baaa baak baar baba babb babe babo babr bac- baca bacc bace back baco baek baer bak- baka bake bako bakr bar- bara barb barc bare bark baro barr baw- bawe bawk bbbb bbeb bbrc bbwc bbwr bcaa bcar bcbc bcca bccc bcec bcer bcor bcra beak bear beaw beba bebb bebe bebo beca beck beeb beek beer beka beke beko beo- beok beor bera berc bere berk bero berr bewa bewe boab boac boak boar boba bobb bobe bobo bobw boca boce bock boco boea boec boee boeo boer boka boke boko boob booc booe book boor boow bor- bora bore bork boro borr borw bowa bowe bowk bowr brab brac brae brak brao braw brca brcb brce brcw brea breb brec bree brek breo brer brew brka brkb broa brob broc broe brok broo bror brow brrr brwe bwaa bwoc c-bo caaa caab caac caba cabe cabo cac- caca cacc cace cack caco cacr cacw caec caer caka cake caor cara carb carc care cark caro carr cawk cbac cbar cbbc cbca cbcc cbce cbcr cbea cbec cbee cber cbka cbko cbkr cbre cbwa ccaa ccab ccac ccar ccba ccbc ccca cccb cccc ccee cckw ccob ccoc ccow ccra ccrc ccre ceac cear ceba cec- ceca cece ceco ceeb ceec ceke ceor cer- cera cerc cere cero cewa cewe ckac ckbc ckbe ckck ckco ckcw cker ckoa ckob ckoc ckoo ckor ckrc ckrw ckwr ckww coak coba cobb cobe cobo coca coce cock coco cok- coka coke coko coob cook cor- cora corb corc core cork coro corr cowe crab crac crar craw crbc crca crcc crce crcr cre- crea creb crec cree creo crew crkc crob croc croe crok croo cror crow cwac cweb cwer cwrw eaba eaca eacc eaec eara earb eare earo earw ebac ebba ebbc ebbo ebbr ebbw ebcc eber eboe eboo ebor ebow ebro ecaa ecac ecao ecar ecbc ecbe ecca eccb eccc ecce ecco ecka ecko eco- ecra ecrc ecrr ecwa eeca eeea eeee eeka eeke eeoc eera eerc eero eka- ekab ekco ekeb ekek eker ekka ekoa ekwe eoka eora eore erba erbb erbe erca ercc erce ereb erec erer erew erke erob eroc eroe eroo erra errc erre erro ewer ewew ewok ewre kaaa kaab kaak kaar kaba kabb kabc kabe kabo kabr kabw kacb kacc kace kaco kacw kaeo kaer kaka kakc kake kakk kako kaoa kaoc kaok kaor kaow kara karb kare kark karo karr karw kaw- kawa kawc kawe kawk kawo kaww kbaa kbab kbac kbae kbak kbar kbba kbbb kbbc kbbe kbbk kbbo kbbr kbbw kbca kbcb kbce kbck kbco kbcr kbcw kbeb kbec kbee kbek kbeo kber kbew kbkb kbkk kbko kbkr kbkw kboa kbob kboc kboe kbok kboo kbow kbra kbrb kbrc kbre kbrk kbro kbrw kbwa kbwb kbwc kbww kcaa kcab kcac kcar kcaw kcba kcbc kcbk kcbr kcbw kcca kccb kccc kcck kccr kcea kceb kcec kcee kceo kckc kckk kcko kckr kcob kcoe kcor kcow kcrc kcro kcrr kcrw kcwa kcwb kcwc kcwe kcwk kcwr kea- keak kear keba kebb kebc kebe kebr keca keck keco kecr keek keer keka kekb kekc keke keko keok ker- kera kerb kerc kere kerk kero kerr kewa kewb kewe kewr kkaa kkac kkar kkaw kkba kkbb kkbe kkbo kkbr kkcb kkck kkco kkcr kkcw kkea kkkk kkoa kkob kkoo kkor kkow kkrb kkrc kkre kkrk kkro kkrr kkwb kkwe kkwk koab koac koae koak koar koba kobb kobc kobe kobk kobo kobr koca kocb kock kocw koea koka kokb kokc koke kokk koko kokr koob kooc kook kooo koor kora korb korc kore kork koro korr kowa kowb kowe kowr krab krac krae krak krar kraw krba krbb krbe krbk krbr krbw krca krcb krcc krce krco krcw krea kreb krec kree krek kreo krew krka krkc krke krkk krko krkr krkw kroa krob kroc kroe krok kroo kror krow krrb krrc krre krrk krro krrr krrw krwa krwb krwc krwk krwr kwab kwac kwak kwar kwaw kwbc kwbe kwbw kwca kwck kwcr kweb kwee kwka kwkb kwkc kwkk kwkr kwkw kwoa kwoc kwok kwor kwow kwrb kwre kwrk kwro kwrr kwrw kwwk kwwr o-eo oaer oake oara oare obak obba obbo obea obec ober obkb oboe obok obor obra obre obro ocab ocac ocak ocbc occa occc oce ocee ocke ocra ocre ocro ocrr oec- oeca oecc oeec oera oere okak oker okka okko okok okor okra okre okro ooaa ooak ooba oobe oocr ooer oooo oora oore orab orac orae orak orao orar orba orbb orbe orbo orca orce orco ore- orea oreb orec orek oreo orer orka orke orko oro- oroe orok oror orra orro orwa orwe orwo owar owea ower owoe owow owre owwa raab raak raba rabb rabe rabk rabo rac- raca racc race rack raco raec raer raka rake rakk raob raoc raok rara rarb rare rark raro rawa rawe rawk rawr raww rbbb rbbr rcac rcbc rcbo rccb rccc rea- reac reae reak reao rear reba