a-a a-b a-i a-t aaa aab aai aar aas aat aau ab- aba abb abi abr abs abt abu ai- aia aib aii air ais ait aiu ar- ara arb ari arr ars art aru as- asa asb asi asr ass ast asu at- ata atb ati atr ats att atu au- aua aub aui aur aus aut b-u baa bab bai bar bas bat bau bba bbb bbi bbr bbs bbt bbu bi- bia bib bii bir bis bit biu bra brb bri brr brs brt bru bsa bsb bsi bsr bss bst bsu bta btb bti btr bts btt btu bua bub bui bur bus but buu ia- iaa iab iai iar ias iat iau iba ibb ibi ibr ibs ibt ibu iia iib iii iir iis iit iiu ir- ira irb iri irr irs irt iru is- isa isb isi isr iss ist isu ita itb iti its itt itu iu- iua iub iui iur ius iut ra- raa rab rai rar ras rat rau rba rbb rbi rbr rbs rbt rbu ria rib rii rir ris rit rra rrb rri rrr rrs rrt rru rsa rsb rsi rsr rss rst rsu rta rtb rti rtr rts rtt rtu rua rub rui rur rus rut ruu saa sab sai sar sas sat sau sba sbb sbi sbr sbs sbt sbu sia sib sii sir sis sit siu sr- sra srb sri srr srs srt ss- ssa ssb ssi ssr sss sst ssu sta stb sti str sts stt stu sua sub sui sur sus sut suu taa tab tai tar tas tat tau tba tbb tbi tbr tbs tbt tbu tia tib tii tir tis tit tiu tra trb tri trr trs trt tru tsa tsb tsi tsr tss tst tsu tta ttb tti ttr tts ttt ttu tua tub tui tur tus tut tuu ua- uaa uab uai uar uas uat uau uba ubb ubi ubr ubs ubt ubu uia uib uii uir uis uit uiu ur- ura urb uri urr urs urt uru usa usb usi usr uss ust usu uta utb uti utr uts utt utu uua uur uus uut uuu

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