a-ak aaaa aaac aaar aaas aaca aacc aack aacr aacs aact aaka aara aarc aars aart aasa aasc aass aast aata aatc aatk aatt ac-t acaa acac acar acas acat acca accc accs acct acks acr- acra acrc acrr acrs acsa acsc acss acst acta actc acts actt akaa akar akas akca akka akr- akra aksa akst arac arak arar aras arat arc- arca arcs arct arka arks arr- arra arrc arrk arrr arrs arrt ars- arsa arsc arsk arst arta artc artr arts asaa asac asak asar asas asat asc- asca ascc ascr asct aska askr asks askt asra asrc asrs assa assc assk assr asss asst asta astc astr asts at-t ataa atac atak atar atas atat atca atcc atck atcr atcs atka atkt atra atrc atrk atsc atst atta attr atts caaa caac caas caat cac- caca cacc cack cacr caka cara carc cark carr cars cart casa casc cask casr cass cast cat- cata catc cats catt ccaa ccac ccar ccas ccat ccca cccc cccs ccra ccrc ccrs ccrt ccsa ccss ccst cctc cctt ckac ckat ckck ckcs ckrc cksa ckst ckts crac crar cras crat crca crcc crcr crkc crrt crsa crss crst crtc crts csaa csac csak csar csas csat cscc cscr cscs cska csks csra csrc csrs cssa cssr csta cstc cstr csts ctca ctrc ctrs ctsa ctsc ctss ctta ctts kaaa kaak kaar kaas kaat kacc kacs kact kaka kakc kakk kaks kakt kara kark karr kars kart kas- kasa kasc kask kasr kass kast kat- kata katc katk katr kats katt kcaa kcac kcar kcas kcat kcca kccc kcck kccr kcct kckc kckk kckr kcrc kcrr kcrs kcrt kcsa kcsc kcsr kcss kcst kcta kctc kkaa kkac kkar kkat kkck kkcr kkcs kkct kkkk kkrc kkrk kkrr kkrs kkrt kksa kksr kkss kkst kktc kktk kkts krac krak krar kras krat krca krcc krcs krka krkc krkk krkr krks krrc krrk krrr krrs krrt krsa krsc krsk krsr krss krst krta krtc krtk krtr krts ksac ksak ksar ksas ksat ksca ksck kscr kscs kska kskk kskr ksks ksra ksrr ksrs ksrt kssa kssr ksss ksst ksta kstc kstk kstr ksts kstt ktaa ktak ktar ktas ktat ktcc ktck ktcr ktcs ktkc ktkk ktkr ktks ktkt ktrc ktrk ktrr ktrs ktrt ktsa ktsc ktsr ktst kttc kttk kttr ktts kttt raak raas raat rac- raca racc rack racs ract raka rakk rakt rara rark rars rasa rasc rask rass rast rata ratk rats ratt rcac rcas rccc rccs rcsa rcsc rcss rctc rcts rkss rkts rras rrat rrrr rsaa rscc rscs rssa rsts rtas rtca rtcc rtss rtts sa-c saac saak saar saas saat saca sacc sack sacr sacs sact saka sakk saks sara sarc sark sarr sars sart sasa sasc sask sass sast sata satc satr sats satt scaa scac scak scar scas scat sccc sccs scct sck- scr- scra scrc scrs scsa scsc scsr scst sctc sctr scts skac skar skat skra skrt skss sras srcc srct srta srtr ssaa ssac ssas ssat ssca sscc sscs ssra ssrc ssrs sssa sssc ssss ssta sstc ssts stac stak star stas stat stca stcc stcs stks stra strc strk strs stss sttc sttr taa- taar taas taat taca tacc tack tacs tact taka takk taks takt tara tarc tark tarr tars tart tasa tasc task tasr tass tast tata tatr tats tatt tcca tccc tctc tcts tkac tkts traa trac trak tras trat trca trcc trra trst trtc trtr tsaa tsar tsat tsca tscc tsks tssa tssr tsst tstc tsts ttss tttt