a-ii aaaa aaai aaap aaar aaas aaii aais aaoo aapa aapi aapo aaps aara aari aaro aarp aars aasa aasi aass aiai aias aiia aiir aioi aipa aipi aips aira airi airo airp airs aisa aisi aiso aisr aopo aora aors aosp aoss apai apao apap apar apas api- apia apio apip apis apo- apoo apop apor apos appa appr apps apra apri apro aprs apsa apsi apso apss arai arap arar aras aria arii ario arip aris aroa aroi aroo aror aros arpa arpi arps arr- arra arri arro arrr arrs ars- arsa arsi arso asaa asai asao asap asar asas asia asii asio asip asir asis asoi asop asor asos aspa aspi aspo aspr asps asra asro asrs assa assi asso assp assr asss iaaa iaai iaap iaas iaia iais iapa iapp iaps iara iars iasa iasi iaso iasp iasr iias iiii iiio iiis iioi iioo iiop iios iipa iira iirs iisi iisp iisr ioii ioio iooi iooo ioos iops iora iori iors ioso ipas ipop ipos ippa ippo ippr ipri ipsa ipsi ipso ipsp ipss irai irao irap irar iras iri- iria irio irip iris irop irpa irps irra irri irrs irsa irsp is-a isai isao isar isas isia isis iso- isop isor isos ispa ispr isps isra isri isrp issa issi isso issp issr isss oais oapi oaps oara oars oasi oass oiii oios oira ooaa ooia oooo ooos oops oora oosa oosi opap opar opia opii opio opis opo- opor opos oppa oppi oppo opps opra opsa opsi orai orao orar oras ori- oria orio oris oro- oror oros orpi orps orra orri orro orrs orsa orsi orso osai osap osar osas osia osii osip osis osoi osoo osor osos osro ossa ossi osso paap paar paas paia paio paip pair pais paos papa papi papp papr paps par- para pari paro parp parr pars pasa pasi paso pasp pass piai piao pias piia piip pipa pipi pipo pipp pips pira piri piro pirr pirs pisa pisi piso piss poar poas poia poio pois poop poor poos pop- popa popi popo popp pops pora pori poro porr pors posa posi poso poss ppap ppar ppoa ppos pppa pppo pppp ppps ppss prai prao prar pras pri- pria prii pris pro- proa proo prop pros prps prri prrs prsa prsi prso prss psap psas psia psip psis psoa psoi psos pspi pspp pspr psps psrp pssa psso raas raia raii raip rair rais raop raos rapa rapi rapp raps rara rari raro rars rasa rasi raso rasp rass riaa riai rias riia riis rios ripa ripi ripp ripr rips riri rirs risa risi riso risp riss roap roar roas roia roio roir rois rooi roop roor roos ropa ropo rops rora rori roro rosa rosi roso rosp ross rpii rpos rpps rras rrrr rrsp rsaa rsai rsis rsos rspo rsps rssa s-ii s-os saap saar saas saia saip sair sais saoi saor saos sapa sapi sapo sapp saps sara sari saro sarp sarr sars sasa sasi saso sass siaa siai sias siop sior sios sipa sipi sipo sipp sips sira siri siro sirp sirr sirs sisa sisi siss soap soar soas soia soir sois soop soor soos sopa sopi sopo sopp sops sora sori soro sorr sors sosa sosi soso soss sp-a spap spar spas spia spio spip spir spis spoo spop spor spos spps spri spro sprs spsa spso spsp spss sras sris sros srps srsp ssaa ssao ssap ssas ssis ssop sspa sspo ssps ssra ssri ssrs sssa sssi ssss