a-ii aaaa aaai aaar aaas aaii aais aara aari aars aart aaru aasa aasi aass aast aasu aata aatt aaus aiai aias aiia aiir aira airi airs airt aisa aisi aisr aist aita aiti aitr aits aitt aitu aiui arai arar aras arat arau aria arii aris arit arr- arra arri arrr arrs arrt arru ars- arsa arsi arst arsu arta arti artr arts arua arui arut asaa asai asar asas asat asau asia asii asir asis asit asra asrs asru assa assi assr asss asst assu asta asti astr asts asui asur asus at-t ataa atai atar atas atat atia atis atit atiu atra atri atru atsi atst atta atti attr atts attu atua atur atus auaa auis aur- aura auri ausa aust ausu aut- auts iaaa iaai iaas iaat iaia iais iara iars iart iaru iasa iasi iasr iata iati iias iiii iiis iiit iira iirs iisi iisr iist iisu iita iitr iitt irai irar iras iri- iria iris irra irri irrs irsa irta irti irts irus is-a isai isar isas isat isia isis isit isra isri issa issi issr isss issu ista isti istr ists isua isus itaa itai itar itas itat itia itis itra itri itrs itsa itsi itsu itta itur iuiu iura iuss iust raas raat raia raii rair rais rait raiu rara rari rars rasa rasi rass rast rasu rata rati rats ratt ratu raua raus raut riaa riai rias riat riau riia riis riri rirs risa risi riss rist risu rita riti rits ritt ritu rius rras rrat rrrr rsaa rsai rsis rssa rsts rstu rsua rtai rtas rtss rtts ruas ruis ruit rura ruri rurs ruru rusa rusi russ rust rusu ruta ruti ruts rutt rutu s-ii saar saas saat saia sair sais sait sara sari sarr sars sart saru sasa sasi sass sast sata sati satr sats satt satu saua saur saus saut siaa siai sias siat siau siit sira siri sirr sirs sirt siru sisa sisi siss sist sisu sit- sita siti sits sitt situ siui sius siut sras sris srta srtr ssaa ssas ssat ssau ssis ssit ssra ssri ssrs sssa sssi ssss ssta ssts stai star stas stat stau stia stir stis stit stra stri strs stru stsi stss sttr stur stus stut suar suas suat suir suis suit sur- sura suri surr surs surt suru sus- susa susi suss sust susu suta suti sutu suus taa- taar taas taat taia tair tais tait tara tari tarr tars tart taru tasa tasi tasr tass tast tasu tata tati tatr tats tatt tatu taua taur taus taut tiaa tiar tias tiit tiiu tira tiri tirr tirs tiru tisa tisi tiss tist tita titi tits titt titu traa trai tras trat trau tri- tria tris trit trra trsi trst trtr trus trut truu tsaa tsai tsar tsat tsau tsia tsis tssa tssi tssr tsst tsts tsui ttss tttt tuar tuas tuat tuis tuit tuiu tura turi turr turs turt turu tusa tusi tuss tust tuta tuti tuts tutt tutu uair uars uart uaru uasa uata uatu uaua uira uirr uist uits urai uras urat urau uria uris uriu urra urri ursa ursi urss ursu urts urur urus urut us-a usaa usar usas usat usia usis usra ussa ussr usss usst ussu usta usti usts usua usui usus utai utas utau utia utis utri utsa utti uttu uuri uusi uuta uuuu