a-a a-b a-t aaa aab aap aar aas aat ab- aba abb abp abr abs abt ap- apa apb app apr aps apt ar- ara arb arp arr ars art as- asa asb asp asr ass ast at- ata atb atp atr ats att b-p baa bab bap bar bas bat bba bbb bbp bbr bbs bbt bpa bpb bpp bpr bps bpt bra brb brp brr brs brt bsa bsb bsp bsr bss bst bta btb btp btr bts btt p-p paa pab pap par pas pat pba pbb pbp pbr pbs pbt ppa ppb ppp ppr pps ppt pra prb prp prr prs prt ps- psa psb psp psr pss pst pt- pta ptb ptp ptr pts ptt ra- raa rab rap rar ras rat rba rbb rbp rbr rbs rbt rpa rpb rpp rpr rps rpt rra rrb rrp rrr rrs rrt rsa rsb rsp rsr rss rst rta rtb rtp rtr rts rtt saa sab sap sar sas sat sba sbb sbp sbr sbs sbt spa spb spp spr sps spt sr- sra srb srp srr srs srt ss- ssa ssb ssp ssr sss sst sta stb stp str sts stt taa tab tap tar tas tat tba tbb tbp tbr tbs tbt tpa tpb tpp tpr tps tpt tra trb trp trr trs trt tsa tsb tsp tsr tss tst tta ttb ttp ttr tts ttt

aaaa aaab aaap aaar aaas aaba aabb aabp aabt aapa aaps aapt aara aarp aars aart aasa aass aast aata aatt abaa abab abap abar abas abat abb- abba abbb abbr abbs abbt abpa abpp abpr abps abra abrs abs- absa absp abss abta abts apap apar apas apat apba apbr apbs appa appr apps appt apra aprs aprt apsa apss apta apts aptt arab arap arar aras arat arba arbs arpa arps arr- arra arrr arrs arrt ars- arsa arst arta artr arts asaa asab asap asar asas asat asba aspa aspr asps aspt asra asrs assa assp assr asss asst asta astb astp astr asts at-t ataa atab atap atar atas atat atbs atpr atra atrp atsb atst atta attp attr atts baaa baar baas baat baba babb babr babs bapa bapp baps bapt bar- bara barb barr bars bart basa bass bast bata bats batt bbas bbbb bbbs bbpr bpsa brab bras brat brrr brrs brsb brsr brst bsaa bsap bsas bsat bspp bspr bsra bsts btaa btbp btps btrt btss bttb paap paar paas paat paba pabt papa papb papp papr paps par- para parp parr pars part pasa pasp pass past pata patr pats patt pbar pbpa pbrs pbsa pbsp ppap ppar pppa pppp ppps ppss ppta ppts pptt prar pras prat prbs prps prrs prsa prss prtp prtr psap psas psat psbr psbt pspp pspr psps psrp pssa psst psts ptab ptas ptsa raab raas raat raba rabb rabs rapa rapp raps rapt rara rarb rars rasa rasp rass rast rata ratp rats ratt rbbb rbbr rbbs rbsp rbss rbst rpps rpta rpts rras rrat rrrr rrsp rsaa rspb rsps rssa rstp rsts rtas rtpa rtps rtss rttp rtts saab saap saar saas saat saba sabb sabr sabs sapa sapp saps sara sarp sarr sars sart sasa sass sast sata satb satr sats satt sbaa sbar sbas sbbs sbsa sbsp sbst sp-a spap spar spas spat spps sprs spsa spsp spss spst spta sptb sptr spts sras srps srpt srsp srta srtp srtr ssaa ssab ssap ssas ssat ssbr sspa ssps sspt ssra ssrs sssa sssb ssss ssta sstb sstp ssts stab stap star stas stat stbs stpp stps stra strs stss sttr taa- taar taas taat taba tabb tabs tapa tapp tapr taps tapt tara tarb tarp tarr tars tart tasa tasb tasp tasr tass tast tata tatb tatr tats tatt tbar tbas tbbs tbrb tbsp tbst tbta tbtp tpap tppa tppp tppr tprs tpsa tptp tptr traa trab trap tras trat trpa trpp trps trra trst trtr tsaa tsar tsat tsps tspt tssa tssr tsst tsts ttab ttbb ttss tttt

-aaa- a-a-p aaaas aaasa aaass aaata aabaa aabba aabps aabra aarts aasra aatsr abaab ababa ababs abara abasa abass abbar abbas abbat abbrs abrar abras absar abstr abtaa abtar apapa apar- apara apars apart apasa apass apast apata apatt appar appts apsar apsat ar-ab araat arab- araba arabs arara arars arass arata arbab arbar arbas arbat arpar arpas arras arsat artar artas artat asaba asara asarp asasa asats aspar aspas aspra asrar assab assas assat assts astab astap astar astas astat astr- astra atapr ataps atara atars atats atbar atbat atpar atrab atrap atras atrst attap attar attas attra baars baart baata babar babas babbs babra bapat bapta baraa barab barar baras barat barba barbs barra barrs barsa barss barst barta barts basab basar baspa basra bassa basta basts batab batar batas batat batra batsa batta batts bbart braas braat brasa brass brast brats bratt brrar brrrr bsaba bssap bstar btr-t paara paarp paars paart paast pabas pabra pabst papa- papar papas papat pappa papps papst para- paras parat parps parr- parra parrs parsa parta partb parts pasab pasar pass- passa pasta pasts patas patr- patra patta praat praps prasa prast prata prats pratt prssa psapp psara psata psats psbaa pssst pssts pstar ptpra ptprb ptprr ptprs ptprt ptrap ra-ra raaba raasa rabab rabap rabas rabat rabba rabta rapar rapat rappa raptr rapts rasar rasas rasat raspa rasps rasra rassa rasta ratas ratba ratra ratta rrsps rrsta sa-ra saaba saabs saara saasa sabar sabas sabat sabra sabsa sapas sappa sapr- saraa sarab saras sarat sarpa sarra sarsa sarta sarts sassa sat-b satat satra satta sbata sparr spars spart spass spata spats sppat sprat srb-a srprb srtas ssats sssrb sssss sstar staab staar staat stabs stapp staps stara starb starr stars start stat- stata stats stpat strap strat strba strbp strrs t-ara t-bar ta-ra ta-ta taart taast tabar tabas tabat tabra tapas tapat tappa tappr tapsa tarap tarar taras tarat tarpa tarps tarpt tarra tars- tarsa tarta tarts tartt tasar tasra tassa