a-be aaaa aaab aaac aaae aaap aaar aaba aabb aabc aabp aabt aaca aacb aacc aace aacp aacr aact aacu aaea aaec aaep aapa aapc aapt aara aarc aare aarp aart aaru aata aatc aatt aaup abaa abab abac abae abap abar abat abau abb- abba abbb abbe abbr abbt abca abcb abcc abcp abcr abct abec abee aber abet abpa abpc abpp abpr abra abrc abta abtu abua abue abut ac-t acaa acab acac acae acap acar acat acba acca accc acce accp acct accu ace- acea acec acer acet acpa acpe acpr acpt acpu acr- acra acrc acre acrr acta actc acte actt actu acu- acue acup acur acut aeac aeap aecb aect aeer aer- aera aerc aeta aetc aetr aett apac apap apar apat apba apbr apca apcb apcc apcr apea apec apep aper apet apeu appa appc appr appt appu apra aprc apre aprt apta aptc apte aptt apua apuc apup arab arac arae arap arar arat arau arba arbe arc- arca arce arct area arec aree arep aret areu arpa arpe arpu arr- arra arrc arre arrr arrt arru arta artc arte artr arua arub arue arup arut at-t ataa atab atac atae atap atar atat atca atcc atcr atea atec atee atep ater atpr atra atrc atre atrp atru atta atte attp attr attu atua atub atuc atur auaa aube auca auce aucp auct auer aupc aur- aura aure aut- aute baaa baar baat baba babb babe babr babu bac- baca bacc bace bact baer bapa bapc bape bapp bapt bapu bar- bara barb barc bare barr bart baru bata batc bate batt batu bau- baur bbau bbbb bbeb bbet bbpr bbrc bcaa bcap bcar bcat bcbc bcbp bcca bccc bcec bcer bcet bcpp bcra bcru bctc bcuc bcup beap bear beat beau beba bebb bebe beca becu beeb beep beer beet bera berc bere berr bert beru beta betc bete bett betu beur bpcp bpea bprc brab brac brae brat brau brca brcb brce brea breb brec bree brep brer bret brrr brtc bruc brue brup brut btaa btbp btcc btec btrc btrt bttb buar buat buba bubb bube bubu buca bucc buce bucu buea buer bueu bupa bupc bur- bura burb bure burp burr burt buru but- buta bute butt caaa caab caac caap caat caba cabe cabu cac- caca cacc cace cacr caec caer caeu capa capb capc cape capp capt capu cara carb carc care carp carr cart cat- cata catb catc cate catt catu cauc caup caut cbac cbar cbat cbbc cbca cbcc cbce cbcp cbcr cbct cbcu cbea cbec cbee cber cbet cbpc cbpp cbre cbrt cbta cbtc ccaa ccab ccac ccap ccar ccat ccba ccbc ccca cccb cccc cccp cccu ccee ccpa ccpe ccpp ccpr ccra ccrc ccre ccrp ccrt cctb cctc cctt ccuc ccup ccut ceac cear ceat ceba cebp cebu cec- ceca cece cecp cect ceeb ceec cepa cepc cepe cepp cepr cept cer- cera cerc cere cerp cert cet- ceta cete cetp cpaa cpac cpap cpbc cpca cpce cpcu cpea cpeb cpep cper cppa cpre cprt cptp cptr crab crac crap crar crat crau crbc crbu crca crcc crce crcr cre- crea creb crec cree crep cret creu crpc crrt crtc crtp crub crue crup crut ctab ctae ctba ctca ctcp ctec ctep ctpp ctrc ctrp ctta cuau cub- cuba cubb cube cuca cucc cuce cuer cupe cupp cupr cura curb cure curr curt cut- cuta cutc cute cutt eaba eaca eacc eaec eapc eapp eara earb eare earp eart eata eate ebac ebba ebbc ebbr ebcc eber ebru ebur ecaa ecac ecar ecat ecbc ecbe ecca eccb eccc ecce ecct ecpa ecpp ecra ecrc ecrr ecru ect- ecta ectc ecua eeca eeea eeee eera eerc eeta eetc eete eetu epaa epac epcc epec epee eper eppa eppc eppp epra eprb eprp epta epte epub erap erat erau erba erbb erbe erca ercc erce ercp ereb erec erer eret erpa erpe erra errc erre erta ertu erua erub eruc erur etap etat etbc etbr etcc etec etee eter etra etre etta ette ettu etua euba eubc euer eur- eura eurc eure eurt paap paar paat paba pabt pabu paca pace pact pacu paea paec paep paer papa papb pape papp papr par- para parc pare parp parr part paru pata pate patr patt patu paua paup paur paut pbac pbar pbcc pbpa pcaa pcae pcap pcba pcbc pcca pccc pcce pcea pcep pcer pcpb pcpp pcra pcrc pcre pcte peab peac peap pear peat peau peba peca pece pecr pect peec peep peer peet pepa pepe per- pera perc pere perp perr pert peru peta pete petr pett peur peut ppac ppap ppar ppcc pper pppa pppp pprc ppru ppta pptt ppur prae prar prat prau prbc prca prcc prcp pre- preb prec pree prep pret preu prtc prtp prtr prue prut pruu ptab ptca ptcc pter pttc pu-e puar pube pubu puca puce puer puet pueu pupa pupe pupu pur- pura purb pure purp purr puru put- puta pute putt putu puuc raab raat raba rabb rabe rabu rac- raca racc race ract racu raec raep raer rapa rapc rape rapp rapt rara rarb rare rata rate ratp ratt ratu raua raub rauc raue raup raut rbbb rbbr rcac rcbc rccb rccc rcep rcet rcpt rctc rea- reac reae reap rear reat reau reba rebb rebe rebu reca recc rece recp recr rect recu reeb reep reet repe repp repr rept repu rera rere rert reru reta rete retr rett reue reup reut reuu rpca rpet rpta rrat rrrr rtca rtcc rtce rtee rtpa rttp ruba rubb rube rubp rubu ruca ruce ruct ruer ruet rupa rupe rupp rupt rura rurc rure rurp ruru ruta rute rutt rutu taa- taar taat taba tabb tabc tabe tabu taca tacc tace tact taec taer tapa tape tapp tapr tapt tapu tara tarb tarc tare tarp tarr tart taru tata tatb tate tatr tatt tatu taua taub tauc taue taur taut tbar tbca tbcb tbcc tbce