a-ak a-ok aaaa aaab aaap aaar aaba aabb aabp aabt aaka aaoo aapa aapo aapt aara aaro aarp aart aata aatk aatt abaa abab abak abap abar abat abb- abba abbb abbo abbr abbt aboa abob abok aboo abor abot abpa abpp abpr abra abro abta akaa akao akap akar akka akko akok akot akpo akr- akra aoba aokp aopo aora aorb aort apak apao apap apar apat apba apbr apo- apoo apop apor apot appa appr appt apra apro aprt apta aptt arab arak arap arar arat arba arka arko aroa arob aroo aror arpa arr- arra arrk arro arrr arrt arta arto artr at-t ataa atab atak atap atar atat atka atkt atob atok atop ator atot atpr atra atrk atro atrp atta atto attp attr baaa baak baar baat baba babb babo babr bak- baka bako bakr bakt bapa bapp bapt bar- bara barb bark baro barr bart bata bato batt bbbb bbpr bkpr bkpt boab boak boar boat boba bobb bobo boka boko boob book boop boor boot bopa bopp bor- bora bork boro borr bort bota botb boto bott bpot brab brak brao brat brka brkb broa brob brok broo bror brot brrr btaa btbp btob btor btrt bttb kaaa kaab kaak kaap kaar kaat kaba kabb kabo kabr kaka kakk kako kakt kaoa kaok kaor kap- kapa kapo kapp kapt kara karb kark karo karp karr kart kat- kata katb katk kato katp katr katt kbaa kbab kbak kbap kbar kbat kbba kbbb kbbk kbbo kbbr kbbt kbkb kbkk kbko kbkr kboa kbob kbok kboo kbot kbpa kbpk kbpo kbpr kbpt kbra kbrb kbrk kbro kbrt kbta kbtb kbtk kbto kbtr kbtt kkaa kkap kkar kkat kkba kkbb kkbo kkbr kkbt kkkk kkoa kkob kkoo kkor kkot kkpk kkpt kkrb kkrk kkro kkrr kkrt kktk koab koak koap koar koba kobb kobk kobo kobr koka kokb kokk koko kokp kokr koob kook kooo koop koor koot kopa kopb kopp kopr kopt kora korb kork koro korr kort kota kotb kotk koto kotr kott kpak kpao kpar kpat kpba kpbb kpbr kpkk kpkr kpoa kpob kpok kpoo kpop kppk kppo kppp kppr kprb kprk kpro kprp kprr kprt kpto kptr kptt krab krak krap krar krat krba krbb krbk krbr krbt krka krkk krko krkr kroa krob krok kroo krop kror krpa krpr krpt krrb krrk krro krrr krrt krta krtk krto krtr ktaa ktak ktao ktap ktar ktat ktba ktbb ktbr ktbt ktkb ktkk ktko ktkr ktkt ktob ktok ktoo ktop ktor ktot ktpa ktpk ktpo ktpr ktpt ktrb ktrk ktro ktrp ktrr ktrt kttk ktto kttp kttr kttt oara obak obba obbo obkb obok obor obot obra obro okak okap okka okko okok okor okot okpo okra okro okta okto ooaa ooak ooba oooo oora oort ootb ootp opap opar opo- opor oppa oppo opra opto orab orak orao orar orat orba orbb orbo orka orko oro- orok oror orot orra orro orta orto otak otap otar oto- otok otoo otor otpp otra otro otta otto paak paap paar paat paba pabt paka pako papa papb papp papr par- para park paro parp parr part pata pato patr patt pbar pbpa pbpk poak poar poat poba pobo poka poko pook poop poor poot pop- popa popo popp popt pora porb pork poro porr port pota poto pott ppap ppar ppoa pppa pppo pppp ppta pptt prao prar prat pro- proa prob proo prop prot prtp prtr ptab ptak ptop pttk raab raak raat raba rabb rabk rabo raka rakk rakt raob raok raop rapa rapp rapt rara rarb rark raro rata ratk rato ratp ratt rbbb rbbr roab roak roap roar roat rob- roba robb robo robt roka rokk roko rokr roob rook roop roor root ropa ropo rora rork roro rort rota rotk roto rotr rott rpob rpta rrat rrrr rtpa rttp taa- taar taat taba tabb tabo taka takk tako takt taoa taor tapa tapo tapp tapr tapt tara tarb tark taro tarp tarr tart tata tatb tato tatr tatt tbar tbrb tbta tbtp toab toat toba tobo tobt toka toko tooa took toor toot top- topa topo topp topt tora tork toro torp torr tort tota toto totr tott tpap tppa tppp tppr tptp tptr traa trab trak trao trap trat troa troo trop trot trpa trpp trra trtr ttab ttbb ttop tttt