a-ii aaaa aaab aaai aaar aaas aaba aabb aabi aabt aaib aaii aais aara aari aars aart aaru aasa aasi aass aast aasu aata aatt aaus abaa abab abai abar abas abat abau abb- abba abbb abbi abbr abbs abbt abia abib abir abis abit abiu abra abri abrs abs- absa absi abss absu abta abts abtu abua abus abut aiai aias aiba aiia aiib aiir aira airi airs airt aisa aisb aisi aisr aist aita aiti aitr aits aitt aitu aiui arab arai arar aras arat arau arba arbi arbs aria arib arii aris arit arr- arra arri arrr arrs arrt arru ars- arsa arsi arst arsu arta arti artr arts arua arub arui arut asaa asab asai asar asas asat asau asba asbu asia asii asir asis asit asra asrs asru assa assi assr asss asst assu asta astb asti astr asts asub asui asur asus at-t ataa atab atai atar atas atat atbs atia atis atit atiu atra atri atru atsb atsi atst atta atti attr atts attu atua atub atur atus auaa auis aur- aura auri ausa aust ausu aut- auts ba-i baaa baar baas baat baba babb babi babr babs babu baia baib bair bais bait bar- bara barb bari barr bars bart baru basa basi bass bast basu bata bati bats batt batu bau- baur bbas bbau bbbb bbbs biar bias biat biba bibb bibi bibs biis bira birb biri birr birs birt biru bis- bisa biss bist bisu bita bits bitt bitu brab brai bras brat brau bria bris brit brrr brrs brsb brsr brst brus brut bsaa bsas bsat bsra bsts btaa btrt btss bttb btus buar buat buba bubb bubi bubs bubu buir buis buit buiu bur- bura burb buri burr burs burt buru busa busi buss bust busu but- buta buti buts butt buus iaaa iaai iaas iaat iaba iaia iais iara iars iart iaru iasa iasi iasr iata iati ibar ibas ibat ibia ibis ibra ibri ibsa ibss ibtb ibts ibus 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 isba isbt isia isis isit isra isri issa issi issr isss issu ista isti istr ists isua isus itaa itai itar itas itat itbs itia itis itra itri itrs itsa itsi itsu itta itur iuiu iura iuss iust raab raas raat raba rabb rabi rabs rabu raia raii rair rais rait raiu rara rarb rari rars rasa rasi rass rast rasu rata rati rats ratt ratu raua raub raus raut rbbb rbbr rbbs rbis rbss rbst riaa riab riai rias riat riau rib- riba ribs ribu riia riis riri rirs risa risi riss rist risu rita riti rits ritt ritu rius rras rrat rrrr rsaa rsai rsbi rsis rssa rsts rstu rsua rtai rtas rtss rtts ruas ruba rubb rubi rubs rubu ruis ruit rura ruri rurs ruru rusa rusi russ rust rusu ruta ruti ruts rutt rutu s-ib s-ii saab saar saas saat saba sabb sabi sabr sabs sabu saia sair sais sait sara sari sarr sars sart saru sasa sasi sass sast sata satb sati satr sats satt satu saua saur saus saut sbaa sbai sbar sbas sbbs sbia sbsa sbsi sbst sbus siaa siab siai sias siat siau siba sibi sibs sibu siit sira siri sirr sirs sirt siru sisa sisi siss sist sisu sit- sita siti sits sitt situ siui sius siut sras srib sris srta srtr srub ssaa ssab ssas ssat ssau ssbr ssis ssit ssra ssri ssrs sssa sssb sssi ssss ssta sstb ssts stab stai star stas stat stau stbs stia stib stir stis stit stra stri strs stru stsi stss sttr stub stur stus stut suar suas suat sub- suba subb subi subs suir suis suit sur- sura suri surr surs surt suru sus- susa susi suss sust susu suta suti sutu suus taa- taar taas taat taba tabb tabi tabs tabu taia tair tais tait tara tarb tari tarr tars tart taru tasa tasb tasi tasr tass tast tasu tata tatb tati tatr tats tatt tatu taua taub taur taus taut tbar tbas tbbs tbit tbrb tbst tbta tiaa tiab tiar tias tiba tibi tibs tibu tiit tiiu tira tirb tiri tirr tirs tiru tisa tisb tisi tiss tist tita titi tits titt titu traa trab trai tras trat trau tri- tria trib tris trit trra trsi trst trtr trub trus trut truu tsaa tsai tsar tsat tsau tsia tsis tssa tssi tssr tsst tsts tsui ttab ttbb ttss tttt tuar tuas tuat tuba tubb tubr tubs tubu tuis tuit tuiu tura turb turi turr turs turt turu tusa tusi tuss tust tuta tuti tuts tutt tutu uair uars uart uaru uasa uata uatu uaua ubar ubba ubbi ubii ubir ubis ubit ubra uira uirr uist uits urai uras urat urau urba urbi urbs uria urib uris uriu urra urri ursa ursi urss ursu urts urur urus urut us-a usaa usar usas usat usba usbr usbs usia usis usra ussa ussb ussr usss usst ussu usta ustb usti usts usua usui usus utai utas utau utia utis utri utsa utti uttu uuri uusi uuta uuuu