a-ii aaaa aaai aaap aaar aaas aaii aais aapa aapi aaps aapt aara aari aarp aars aart aasa aasi aass aast aata aatt aiai aias aiia aiir aipa aipi aips aira airi airp airs airt aisa aisi aisr aist aita aiti aitr aits aitt apai apap apar apas apat api- apia apip apis apit appa appr apps appt apra apri aprs aprt apsa apsi apss apta apti apts aptt arai arap arar aras arat aria arii arip aris arit arpa arpi arps arr- arra arri arrr arrs arrt ars- arsa arsi arst arta arti artr arts asaa asai asap asar asas asat asia asii asip asir asis asit aspa aspi aspr asps aspt asra asrs assa assi assp assr asss asst asta asti astp astr asts at-t ataa atai atap atar atas atat atia atip atis atit atpr atra atri atrp atsi atst atta atti attp attr atts iaaa iaai iaap iaas iaat iaia iais iapa iapp iaps iapt iara iars iart iasa iasi iasp iasr iata iati iias iiii iiis iiit iipa iira iirs iisi iisp iisr iist iita iitr iitt ipas ipat ippa ippr ipri ipsa ipsi ipsp ipss ipta ipts irai irap irar iras iri- iria irip iris irpa irps irra irri irrs irsa irsp irta irti irtp irts is-a isai isar isas isat 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 itia itis itpa itra itri itrs itsa itsi itsp itta paap paar paas paat paia paip pair pais pait papa papi papp papr paps par- para pari parp parr pars part pasa pasi pasp pass past pata pati patr pats patt piai pias piat piia piip pipa pipi pipp pips pira piri pirr pirs pisa pisi piss pist pita piti pitr pits pitt ppap ppar pppa pppp ppps ppss ppta ppts pptt prai prar pras prat pri- pria prii pris prps prri prrs prsa prsi prss prti prtp prtr psap psas psat psia psip psis pspi pspp pspr psps psrp pssa psst psts ptas ptsa raas raat raia raii raip rair rais rait rapa rapi rapp raps rapt rara rari rars rasa rasi rasp rass rast rata rati ratp rats ratt riaa riai rias riat 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 rsis rsps rssa rstp rsts rtai rtas rtpa rtps rtss rttp rtts s-ii saap saar saas saat saia saip sair sais sait sapa sapi sapp saps sara sari sarp sarr sars sart sasa sasi sass sast sata sati satr sats satt siaa siai sias siat 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 spip spir spis spit spps spri sprs spsa spsp spss spst spta sptr spts sras sris srps srpt srsp srta srtp srtr ssaa ssap ssas ssat ssis ssit sspa ssps sspt ssra ssri ssrs sssa sssi ssss ssta sstp ssts stai stap star stas stat stia stip stir stis stit stpp stps stra stri strs stsi stss sttr taa- taar taas taat taia taip tair tais tait tapa tapi tapp tapr taps tapt tara tari tarp tarr tars tart tasa tasi tasp tasr tass tast tata tati tatr tats tatt tiaa tiar tias tiit tip- tipa tipi tipp tips tipt tira tiri tirr tirs tisa tisi tiss tist tita titi titp tits titt tpap tpia tpir tppa tppp tppr tprs tpsa tptp tptr traa trai trap tras trat tri- tria trip tris trit trpa trpp trps trra trsi trst trtr tsaa tsai tsar tsat tsia tsis tsps tspt tssa tssi tssr tsst tsts ttss tttt