a-a a-b a-t aaa aab aaf aar aat ab- aba abb abf abr abt af- afa afb aff afr aft ar- ara arb arf arr art at- ata atb atf atr att baa bab baf bar bat bba bbb bbf bbr bbt bfa bfb bff bfr bft bra brb brf brr brt bta btb btf btr btt faa fab faf far fat fba fbb fbf fbr fbt ffa fff ffr fft fra frb frf frr frt fta ftb ftf ftr ftt ra- raa rab raf rar rat rba rbb rbf rbr rbt rfa rfb rff rfr rft rra rrb rrf rrr rrt rta rtb rtf rtr rtt taa tab taf tar tat tba tbb tbf tbr tbt tfa tfb tff tfr tft tra trb trf trr trt tta ttb ttf ttr ttt

aaaa aaab aaaf aaar aaba aabb aabt aafa aafb aaff aara aart aata aatf aatt abaa abab abaf abar abat abb- abba abbb abbr abbt abff abra abta afaa afar afat affa afft afr- afra afta arab araf arar arat arba arfa arfb arff arft arr- arra arrr arrt arta artr at-t ataa atab atar atat atfb atra atta attr baaa baaf baar baat baba babb babr baff baft bar- bara barb barf barr bart bata batf batt bbbb bfta bftt brab braf brat brrr btaa btaf btrt bttb faaa faba fafa faff fara farb farr fart fata fatf fatt fbar ffar ffff ffrr fftf frab frat frta raab raaf raat raba rabb rafa raff raft rara rarb rarf rata ratf ratt rbaf rbbb rbbr rrat rrrr rtbf rtfb taa- taaf taar taat taba tabb tafa taff taft tara tarb tarf tarr tart tata tatb tatr tatt tbaf tbar tbrb tbta traa trab traf trat trfr trra trtr ttab ttbb ttfa ttff tttt

-aaa- aaata aabaa aabba aabra aafat abaab ababa abaft abara abbar abbat abfab abrar abtaa abtaf abtar afara aftab aftar aftra ar-ab araat arab- araba araft arara arata arbab arbar arbat artar artat atara atbar atbat atrab atraf attar attra baart baata babar babra bafat baffa bafra bafta baraa barab barar barat barba barff barra barta batab batar batat batra batta bbart braat braff bratt brrar brrrr btr-t fabra farab farfa farta fatar fatra ffatt fraba frata ftrtt ra-ra raaba raaff rabab rabat rabba rabta rafar rafat raffa rafft rafta raraf ratba ratra ratta t-ara t-bar ta-ra ta-ta taart tabaf tabar tabat tabra taraf tarar tarat tarfa tarra tarta tartt tataa tataf tatar tatra tatta tbtbt traba trata tratt ttttt

aaaaba abarat abarta abatar aftaab araafa arafat ararat aratta arbra arfara arfarf arraba at-bat ataaba atarba atarra atbara atrata baabaa baabar baatar babbar bafata baraat barara barata barbar barbat barbra barrat bartab bartra batara batata bbbbbb fabara faraar farara farfar farrar frafra fratar fratta raabta rababa rabbat rataft ratata ratbat rattar rattat t-barb taarab tabara tabata tabbat taraba tarafa tarara tarata tarrar tartar tartr- tataat tatafa tatara tattat tra-ra

arabata attatba baabarr babbart barabra barbara barbata barratt barrtab batabat bbbbbbb fararat farfara fatafat raftaar rat-tat ratatat tabarra taffata tat-tat

bafarara bar-abba barabara batatara bbbbbbbb brattata ra-ta-ta taratata

baabaabaa battabara rat-a-tat

ratatattat

rat-tat-tat ratatatfrat tat-tat-tat

tatararatata tattarrattat

rat-a-tat-tat

aaaaaaaaaaaaaaa bbbbbbbbbbbbbbb