a-ak a-be a-ha aaaa aaab aaac aaae aaah aaar aaba aabb aabc aabh aaca aacb aacc aace aach aack aacr aaea aaec aage aagh aaha aahk aaka aake aara aarc aare abaa abab abac abae abag abak abar abb- abba abbb abbe abbr abca abcb abcc abch abcr abec abee aber abha abhr abra abrc acaa acab acac acae acag acar acba acca accc acce acch ace- acea acec aceh acek acer acga acgr acha ache achh achr acke acr- acra acrc acre acrr aeac aecb aeer aega aeka aer- aera aerc agac agag agar agba agca agcc agce agea agee ager agga agge agha aghe agra agre ahab ahac ahah ahar ahha ahra ahrc ahre ahrr akaa akae akah akar akca akee akeg aker akha akka akr- akra akre arab arac arae arag arah arak arar arba arbe arbh arc- arca arce arch area arec aree areg areh arek arga argb arge argh arh- arka arke arkh arr- arra arrc arre arrg arrh arrk arrr baaa baah baak baar baba babb babe babr bac- baca bacc bace bach back baek baer baga bage bagg bagh baha bahr bak- baka bake bakh bakr bar- bara barb barc bare barg barh bark barr bbbb bbch bbeb bbga bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcec bcer bche bcra beag beah beak bear beba bebb bebe beca bech beck beeb beeg beek beer bega begg behr beka beke bera berc bere berg berk berr bgca bhag bhar bhca bhcc bher bhra brab brac brae brag brah brak brca brcb brce brea breb brec bree breg brek brer brka brkb brrr caaa caab caac caah caba cabe cabg cac- caca cacc cace cach cack cacr caec caer caga cage cagg cagr caha cahe caka cake cara carb carc care cark carr cbac cbar cbbc cbca cbcc cbce cbcr cbea cbec cbee cber cbga cbgb cbha cbka cbkg cbkr cbre cbrh ccaa ccab ccac ccag ccar ccba ccbc ccca cccb cccc ccee ccga ccgc ccha cche cchr ccra ccrc ccre ccrg ceac cear ceba cec- ceca cece ceeb ceec cege ceke cer- cera cerc cere cgac cgcc cgcg cger chaa chab chac chae chag chah chak char chca chce chch chea cheb chec chee cheh chek cher chgb chge chha chka chkb chra chrb chrc chrr ckac ckbc ckbe ckch ckck cker ckga ckrc crab crac crag crar crbc crca crcc crce crcr cre- crea creb crec cree creg creh crkc eaba eabh eaca eacc each eaec eaga eage eara earb eare earh ebac ebba ebbc ebbr ebcc eber ecaa ecac ecar ecbc ecbe ecca eccb eccc ecce echa eche ecka ecra ecrc ecrr eeca eeea eeee eega eeka eeke eera eerc eerg egaa egae egar egba egbe egcc egcg egcr egea egec egee eger eggb egge eggh eghe eghh egra egre ehaa ehcc ehea eheh eher ehre eka- ekab ekch ekeb ekek eker ekka erba erbb erbe erca ercc erce erch ereb erec erer erg- erga ergg ergh erhc erke erra errc erre gaar gaba gabb gabe gabr gace gach gack gaea gaec gaer gaga gage gagg gaha gahe gara garb gare garg garr gbag gc-c gcaa gcbc gccc gcrg geab gear geba gebe geca gece geck geek geer gege gegg geha gera gerb gere gggg gghg ghar ghea ghee gheg grab grac grae grbr grcc grce grea greb grec gree greg grrr haab haag haak haar haba habe hace hack haec hag- haga hage hagg hagh haha haka hake hakk hara harc hare harh hark harr hbag hbar hcbc hcca hccb hccc hcch hcgh heah hear hebb hebe hebr heca hech heck heeb heeg heek heer hega hege hegg hegh hehe heka heke hera herb herc here herg herk herr hgah hgar hggc hhaa hhgg hhhh hkcc hrac hree hrrc kaaa kaab kaag kaak kaar kaba kabb kabc kabe kabg kabr kacb kacc kace kach kaeh kaer kag- kaga kagb kagc kage kagg kagh kagr kaha kahc kahe kahr kaka kakc kake kakh kakk kara karb kare karg kark karr kbaa kbab kbac kbae kbak kbar kbba kbbb kbbc kbbe kbbg kbbk kbbr kbca kbcb kbce kbch kbck kbcr kbeb kbec kbee kbeh kbek kber kbga kbgb kbge kbgg kbgh kbgr kbhb kbhc kbhe kbhh kbhr kbkb kbkg kbkk kbkr kbra kbrb kbrc kbre kbrg kbrh kbrk kcaa kcab kcac kcah kcar kcba kcbc kcbk kcbr kcca kccb kccc kcck kccr kcea kceb kcec kcee kceg kcgc kcgr kcha kche kchg kchh kchk kchr kckc kckk kckr kcrc kcrg kcrh kcrr kea- keag keak kear keba kebb kebc kebe kebr keca kecg kech keck kecr keeh keek keer kega kege kegg kegh kegk kegr kehk kehr keka kekb kekc keke ker- kera kerb kerc kere kerk kerr kgab kgac kgak kgba kgbb kgbc kgbr kgcb kgcc kgce kgcr kgeb kgec kgga kggg kggr kghr kgra kgrb kgrc kgre kgrg kgrk kgrr khab khac khak khar khbc khbr khca khcb khcc khch khck kheb khec kher khgc khge khgg khhg khhk khka khke khkk khkr khra khrk khrr kkaa kkac kkag kkar kkba kkbb kkbe kkbg kkbr kkcb kkch kkck kkcr kkea kkeg kkgb kkgr kkha kkhb kkhh kkhk kkhr kkkk kkrb kkrc kkre kkrh kkrk kkrr krab krac krae krag krah krak krar krba krbb krbe krbg krbk krbr krca krcb krcc krce krcg krch krea kreb krec kree kreh krek krhc krka krkc krke krkh krkk krkr krrb krrc krre krrg krrk krrr raab raag raak raba rabb rabe rabk rac- raca racc race rach rack raec raeg raer raga rage ragg ragh raha rahe rahr raka rake rakk rara rarb rare rark rbbb rbbr rbgh rcac rcbc rccb rccc rcga rcgc rchb rcrg rea- reac reae reak rear reba rebb rebe rebk reca recc rece rech reck recr reeb reek rega rege regr reha rehb rehe reka reke rera rere rerg rgba rgbe rhae rhag rhbg rhce rhcg rhea rheb rhee rrah rrrr