a-a a-b a-c a-t aaa aab aac aak aar aat ab- aba abb abc abk abr abt ac- aca acb acc ack acr act aka akb akc akk akr ar- ara arb arc ark arr art at- ata atb atc atr att baa bab bac bak bar bat bba bbb bbc bbk bbr bbt bca bcb bcc bck bcr bct bka bkb bkc bkk bkr bkt bra brb brk brr brt bta btb btc btk btr btt c-- caa cab cac cak car cat cba cbb cbc cbk cbr cbt cca ccb ccc cck ccr cct cka ckb ckc ckt cra crb crc crk crr crt cta ctb ctc ctk ctr ctt k-t ka- kaa kab kac kak kar kat kba kbb kbc kbk kbr kca kcb kcc kck kcr kct kkb kkc kkk kkr kkt kra krc krk krr krt kta ktb ktc ktk ktr ktt ra- raa rab rac rak rar rat rba rbb rbc rbk rbr rbt rca rcb rcc rcr rct rkb rkc rkk rkt rra rrb rrc rrk rrr rrt rta rtb rtc rtk rtr rtt taa tab tac tak tar tat tba tbb tbc tbk tbr tbt tca tcb tcc tck tcr tct tka tkb tkc tkk tkr tkt tra trb trc trk trr trt tta ttb ttc ttk ttr ttt

a-ak aaaa aaab aaac aaar aaba aabb aabc aabt aaca aacb aacc aack aacr aact aaka aara aarc aart aata aatc aatk aatt abaa abab abac abak abar abat abb- abba abbb abbr abbt abca abcb abcc abcr abct abra abrc abta ac-t acaa acab acac acar acat acba acca accc acct acr- acra acrc acrr acta actc actt akaa akar akca akka akr- akra arab arac arak arar arat arba arc- arca arct arka arr- arra arrc arrk arrr arrt arta artc artr at-t ataa atab atac atak atar atat atca atcc atck atcr atka atkt atra atrc atrk atta attr baaa baak baar baat baba babb babr bac- baca bacc back bact bak- baka bakr bakt bar- bara barb barc bark barr bart bata batc batt bbbb bbrc bcaa bcar bcat bcbc bcca bccc bcra bctc brab brac brak brat brca brcb brka brkb brrr brtc btaa btcc btrc btrt bttb caaa caab caac caat caba cac- caca cacc cack cacr caka cara carb carc cark carr cart cat- cata catb catc catt cbac cbar cbat cbbc cbca cbcc cbcr cbct cbka cbkr cbrt cbta cbtc ccaa ccab ccac ccar ccat ccba ccbc ccca cccb cccc ccra ccrc ccrt cctb cctc cctt ckac ckat ckbc ckck ckrc cktb crab crac crar crat crbc crca crcc crcr crkc crrt crtc ctab ctba ctca ctrc ctta kaaa kaab kaak kaar kaat kaba kabb kabc kabr kacb kacc kact kaka kakc kakk kakt kara karb kark karr kart kat- kata katb katc katk katr katt kbaa kbab kbac kbak kbar kbat kbba kbbb kbbc kbbk kbbr kbbt kbca kbcb kbck kbcr kbct kbkb kbkk kbkr kbra kbrb kbrc kbrk kbrt kbta kbtb kbtc kbtk kbtr kbtt kcaa kcab kcac kcar kcat kcba kcbc kcbk kcbr kcca kccb kccc kcck kccr kcct kckc kckk kckr kcrc kcrr kcrt kcta kctb kctc kkaa kkac kkar kkat kkba kkbb kkbr kkbt kkcb kkck kkcr kkct kkkk kkrb kkrc kkrk kkrr kkrt kktc kktk krab krac krak krar krat krba krbb krbk krbr krbt krca krcb krcc krka krkc krkk krkr krrb krrc krrk krrr krrt krta krtc krtk krtr ktaa ktak ktar ktat ktba ktbb ktbc ktbr ktbt ktcc ktck ktcr ktkb ktkc ktkk ktkr ktkt ktrb ktrc ktrk ktrr ktrt kttc kttk kttr kttt raab raak raat raba rabb rabk rac- raca racc rack ract raka rakk rakt rara rarb rark rata ratk ratt rbbb rbbr rcac rcbc rccb rccc rctc rrat rrrr rtca rtcc taa- taar taat taba tabb tabc taca tacc tack tact taka takk takt tara tarb tarc tark tarr tart tata tatb tatr tatt tbar tbca tbcb tbcc tbrb tbta tcca tccc tctc tkac traa trab trac trak trat trca trcc trra trtc trtr ttab ttbb tttt

-aaa- aaarc aaata aabaa aabba aabra aacbc abaab ababa abaca aback abaka abara abbac abbar abbat abccc abkar abrac abrak abrar abtaa abtar acaca acacb acack acar- acara accra acrab act-r actar actra akaba akata akbar akkra akrak akrar ar-ab ara-c araat arab- araba araca arack arara arata arbab arbar arbat arct- arkar arkat arrak artar artat atack ataka atara atbar atbat atrab atrak attak attar attra b-r-k baart baata babak babar babka babra bacab bacar bacca back- backa bacta bakar bakka bakra bakrc baraa barab barac barak barar barat barba barca bark- barka barra barta batab batac batak batar batat batka batra batta bbart bccat braak braat braca bracc brack bract bratt brrar brrrr btr-t c-a-c c-rat ca-ca caaba cabra cacak cakra caraa carab carac carak carat carb- carck cark- carra carrt carta cata- catak catra catta ccccc craba crabb crack k-car k-rab k-t-b k-tab kaaba kabaa kabab kabak kabar kabat kabba kabta kacar kakar kakka kakra karak karat karka kart- karta kata- katak katar katat katra katta kraak kraar krack kraka kratt ra-ra raaba raack rabab rabac rabak rabat rabba rabta racak racka rackt racta rakaa rakab rakat ratak ratba ratka ratra ratta rccar rt-rk t-ara t-bar t-cat t-rac ta-ra ta-ta taaka taart tabac tabak tabar tabat tabra tacca takab takar takra tarac tarar tarat tarka tarra tarta tartt tataa tatar tatra tatta tbtbt tcart traac traba track tract traka trakr trata tratt ttttt

a-trak aaaaba abacab abarat abarca abarka abarta abatar abraka accara ackack ackbar acrack acrata ak-art akarca akbaba akkaba akraba akraka akrata aracar ararat aratta arbra arcata arraba arrack artcar at-bat ataaba atacta atarba atarra atbara atrata attack baabaa baabar baatar babarc babbar bacaba baccar bactra bakara bakata bakkar baktar baraat baraca barack baraka barara barata barbar barbat barbra barcar barkat barrak barrat bartab bartra bataka batara batata batcat battak bbbbbb bracak bracca bratac bratca caback cabar cabara cabarr cabart cakcak caraca carack caract carara carbak carcar carcat carrat catcat