a-ii aaaa aaab aaai aaap aaar aaas aaba aabb aabi aabp aabt aaib aaii aais aapa aapi aaps aapt aara aari aarp aars aart aasa aasi aass aast aata aatt abaa abab abai abap abar abas abat abb- abba abbb abbi abbr abbs abbt abia abib abir abis abit abpa abpi abpp abpr abps abra abri abrs abs- absa absi absp abss abta abts aiai aias aiba aiia aiib aiir aipa aipi aips aira airi airp airs airt aisa aisb aisi aisr aist aita aiti aitr aits aitt apai apap apar apas apat apba apbr apbs api- apia apip apis apit appa appr apps appt apra apri aprs aprt apsa apsi apss apta apti apts aptt arab arai arap arar aras arat arba arbi arbs aria arib arii arip aris arit arpa arpi arps arr- arra arri arrr arrs arrt ars- arsa arsi arst arta arti artr arts asaa asab asai asap asar asas asat asba asia asii asip asir asis asit aspa aspi aspr asps aspt asra asrs assa assi assp assr asss asst asta astb asti astp astr asts at-t ataa atab atai atap atar atas atat atbs atia atip atis atit atpr atra atri atrp atsb atsi atst atta atti attp attr atts ba-i baaa baar baas baat baba babb babi babr babs baia baib bair bais bait bapa bapi bapp baps bapt bar- bara barb bari barr bars bart basa basi bass bast bata bati bats batt bbas bbbb bbbs bbpr biap biar bias biat biba bibb bibi bibs biis bipa bipp bips bira birb biri birr birs birt bis- bisa bisp biss bist bita bits bitt bpai bpsa bpti brab brai bras brat bria bris brit brrr brrs brsb brsr brst bsaa bsap bsas bsat bspp bspr bsra bsts btaa btbp btps btrt btss bttb iaaa iaai iaap iaas iaat iaba iaia iais iapa iapp iaps iapt iara iars iart iasa iasi iasp iasr iata iati ibar ibas ibat ibia ibis ibra ibri ibsa ibss ibtb ibts iias iiii iiis iiit iipa iira iirs iisi iisp iisr iist iita iitr iitt ipas ipat ipba ippa ippr ipri ipsa ipsi ipsp ipss ipta ipts irai irap irar iras irbp iri- iria irip iris irpa irps irra irri irrs irsa irsp irta irti irtp irts is-a isai isar isas isat isba isbt isia isis isit ispa ispr isps isra isri isrp issa issi issp issr isss ista isti istp istr ists itaa itai itap itar itas itat itbs itia itis itpa itra itri itrs itsa itsi itsp itta paap paar paas paat paba pabt paia paib paip pair pais pait papa papb papi papp papr paps par- para pari parp parr pars part pasa pasi pasp pass past pata pati patr pats patt pbar pbpa pbrs pbsa pbsp piai pias piat pibb pibi piia piip pipa pipi pipp pips pira piri pirr pirs pisa pisi piss pist pita piti pitr pits pitt ppap ppar ppib pppa pppp ppps ppss ppta ppts pptt prai prar pras prat prbs pri- pria prii pris prps prri prrs prsa prsi prss prti prtp prtr psap psas psat psbr psbt psia psip psis pspi pspp pspr psps psrp pssa psst psts ptab ptas ptsa raab raas raat raba rabb rabi rabs raia raii raip rair rais rait rapa rapi rapp raps rapt rara rarb rari rars rasa rasi rasp rass rast rata rati ratp rats ratt rbbb rbbr rbbs rbis rbsp rbss rbst riaa riab riai rias riat rib- riba ribs riia riis ripa ripi ripp ripr rips ript riri rirs risa risi risp riss rist rita riti rits ritt rpii rpps rpta rpts rras rrat rrrr rrsp rsaa rsai rsbi rsis rspb rsps rssa rstp rsts rtai rtas rtpa rtps rtss rttp rtts s-ib s-ii saab saap saar saas saat saba sabb sabi sabr sabs saia saip sair sais sait sapa sapi sapp saps sara sari sarp sarr sars sart sasa sasi sass sast sata satb sati satr sats satt sbaa sbai sbar sbas sbbs sbia sbsa sbsi sbsp sbst siaa siab siai sias siat siba sibi sibs siit sipa sipi sipp sips sipt sira siri sirp sirr sirs sirt sisa sisi siss sist sit- sita siti sits sitt sp-a spap spar spas spat spia spib spip spir spis spit spps spri sprs spsa spsp spss spst spta sptb sptr spts sras srib sris srps srpt srsp srta srtp srtr ssaa ssab ssap ssas ssat ssbr ssis ssit sspa ssps sspt ssra ssri ssrs sssa sssb sssi ssss ssta sstb sstp ssts stab stai stap star stas stat stbs stia stib stip stir stis stit stpp stps stra stri strs stsi stss sttr taa- taar taas taat taba tabb tabi tabs taia taip tair tais tait tapa tapi tapp tapr taps tapt tara tarb tari tarp tarr tars tart tasa tasb tasi tasp tasr tass tast tata tatb tati tatr tats tatt tbar tbas tbbs tbit tbrb tbsp tbst tbta tbtp tiaa tiab tiar tias tiba tibi tibs tiit tip- tipa tipi tipp tips tipt tira tirb tiri tirr tirs tisa tisb tisi tiss tist tita titi titp tits titt tpap tpia tpir tppa tppp tppr tprs tpsa tptp tptr traa trab trai trap tras trat tri- tria trib trip tris trit trpa trpp trps trra trsi trst trtr tsaa tsai tsar tsat tsia tsis tsps tspt tssa tssi tssr tsst tsts ttab ttbb ttss tttt