a-ak a-be aaaa aaab aaac aaae aaap aaar aaba aabb aabc aabp aabt aaca aacb aacc aace aack aacp aacr aact aaea aaec aaep aaka aake aapa aapc aapt aara aarc aare aarp aart aata aatc aatk aatt abaa abab abac abae abak abap abar abat abb- abba abbb abbe abbr abbt abca abcb abcc abcp abcr abct abec abee aber abet abpa abpc abpp abpr abra abrc abta ac-t acaa acab acac acae acap acar acat acba acca accc acce accp acct ace- acea acec acek acer acet acke acpa acpe acpr acpt acr- acra acrc acre acrr acta actc acte actt aeac aeap aecb aect aeer aeka aer- aera aerc aeta aetc aetr aett akaa akae akap akar akca akee aker akka akr- akra akre akte apac apak apap apar apat apba apbr apca apcb apcc apcr apea apec apep aper apet apke appa appc appr appt apra aprc apre aprt apta aptc apte aptt arab arac arae arak arap arar arat arba arbe arc- arca arce arct area arec aree arek arep aret arka arke arpa arpe arr- arra arrc arre arrk arrr arrt arta artc arte artr at-t ataa atab atac atae atak atap atar atat atca atcc atck atcr atea atec atee atep ater atka atkt atpr atra atrc atre atrk atrp atta atte attp attr baaa baak baar baat baba babb babe babr bac- baca bacc bace back bact baek baer bak- baka bake bakr bakt bapa bapc bape bapp bapt bar- bara barb barc bare bark barr bart bata batc bate batt bbbb bbeb bbet bbpr bbrc bcaa bcap bcar bcat bcbc bcbp bcca bccc bcec bcer bcet bcpp bcra bctc beak beap bear beat beba bebb bebe beca beck beeb beek beep beer beet beka beke bera berc bere berk berr bert beta betc bete bett bkpr bkpt bpcp bpea bprc brab brac brae brak brat brca brcb brce brea breb brec bree brek brep brer bret brka brkb brrr brtc btaa btbp btcc btec btek btrc btrt bttb caaa caab caac caap caat caba cabe cac- caca cacc cace cack cacr caec caer caka cake capa capb capc cape capp capt cara carb carc care cark carp carr cart cat- cata catb catc cate catt cbac cbar cbat cbbc cbca cbcc cbce cbcp cbcr cbct cbea cbec cbee cber cbet cbka cbkr cbpc cbpp cbre cbrt cbta cbtc ccaa ccab ccac ccap ccar ccat ccba ccbc ccca cccb cccc cccp ccee ccpa ccpe ccpp ccpr ccra ccrc ccre ccrp ccrt cctb cctc cctt ceac cear ceat ceba cebp cec- ceca cece cecp cect ceeb ceec ceke cepa cepc cepe cepp cepr cept cer- cera cerc cere cerp cert cet- ceta cete cetp ckac ckat ckbc ckbe ckck cker ckpc ckpr ckrc cktb cpaa cpac cpap cpbc cpca cpce cpea cpeb cpep cper cppa cpre cprt cptp cptr crab crac crap crar crat crbc crca crcc crce crcr cre- crea creb crec cree crep cret crkc crkp crpc crrt crtc crtp ctab ctae ctba ctca ctcp ctec ctep ctpp ctrc ctrp ctta eaba eaca eacc eaec eapc eapp eara earb eare earp eart eata eate ebac ebba ebbc ebbr ebcc eber ecaa ecac ecar ecat ecbc ecbe ecca eccb eccc ecce ecct ecka ecpa ecpp ecra ecrc ecrr ect- ecta ectc eeca eeea eeee eeka eeke eera eerc eeta eetc eete eka- ekab ekeb ekek eker eket ekka ekpe ekta epaa epac epcc epec epee eper eppa eppc eppp epra eprb eprp epta epte erap erat erba erbb erbe erca ercc erce ercp ereb erec erer eret erke erpa erpe erra errc erre erta etak etap etat etbc etbr etcc etec etee eter etka etra etre etta ette kaaa kaab kaak kaap kaar kaat kaba kabb kabc kabe kabr kacb kacc kace kacp kact kaep kaer kaet kaka kakc kake kakk kakt kap- kapa kapc kape kapp kapt kara karb kare kark karp karr kart kat- kata katb katc kate katk katp katr katt kbaa kbab kbac kbae kbak kbap kbar kbat kbba kbbb kbbc kbbe kbbk kbbr kbbt kbca kbcb kbce kbck kbcr kbct kbeb kbec kbee kbek kber kbet kbkb kbkk kbkr kbpa kbpc kbpe kbpk kbpr kbpt kbra kbrb kbrc kbre kbrk kbrt kbta kbtb kbtc kbte kbtk kbtr kbtt kcaa kcab kcac kcap kcar kcat kcba kcbc kcbk kcbr kcca kccb kccc kcck kccr kcct kcea kceb kcec kcee kcep kcet kckc kckk kckr kcpa kcpc kcpr kcpt kcrc kcrp kcrr kcrt kcta kctb kctc kcte kea- keak keap kear keat keba kebb kebc kebe kebr kebt keca keck kecr keek keep keer keet keka kekb kekc keke kep- kepa kepc kepe kept ker- kera kerb kerc kere kerk kerp kerr kert ket- keta ketc kete ketk ketp ketr kett kkaa kkac kkap kkar kkat kkba kkbb kkbe kkbr kkbt kkcb kkck kkcr kkct kkea kkkk kkpc kkpk kkpt kkrb kkrc kkre kkrk kkrr kkrt kktc kktk kpac kpae kpak kpar kpat kpba kpbb kpbe kpbr kpcc kpcr kpek kper kpet kpke kpkk kpkr kppc kppk kppp kppr kprb kprc kpre kprk kprp kprr kprt kpte kptr kptt krab krac krae krak krap krar krat krba krbb krbe krbk krbr krbt krca krcb krcc krce krea kreb krec kree krek kret krka krkc krke krkk krkr krpa krpr krpt krrb krrc krre krrk krrr krrt krta krtc krtk krtr ktaa ktae ktak ktap ktar ktat ktba ktbb ktbc ktbr ktbt ktcc ktce ktck ktcr ktea ktec ktee ktek ktep ktkb ktkc ktke ktkk ktkr ktkt ktpa ktpk ktpr ktpt ktrb ktrc ktre ktrk ktrp ktrr ktrt kttc kttk kttp kttr kttt paak paap paar paat paba pabt paca pace pack pact paea paec paep paer paka pake papa papb pape papp papr par- para parc pare park parp parr part pata pate patr patt pbac pbar pbcc pbpa pbpk pcaa pcae pcap pcba pcbc pcca pccc pcce pcea pcep pcer pcpb pcpp pcra pcrc pcre pcte peab peac peak peap pear peat peba peca pece peck pecr pect