a-a a-b a-i a-t aaa aab aaf aai aar aas aat aau ab- aba abb abf abi abr abs abt abu af- afa afb aff afi afr afs aft afu ai- aia aib aif aii air ais ait aiu ar- ara arb arf ari arr ars art aru as- asa asb asf asi asr ass ast asu at- ata atb atf ati atr ats att atu au- aua aub auf aui aur aus aut b-u baa bab baf bai bar bas bat bau bba bbb bbf bbi bbr bbs bbt bbu bfa bfb bff bfi bfr bfs bft bfu bi- bia bib bif bii bir bis bit biu bra brb brf bri brr brs brt bru bsa bsb bsf bsi bsr bss bst bsu bta btb btf bti btr bts btt btu bua bub buf bui bur bus but buu faa fab faf fai far fas fat fau fba fbb fbf fbi fbr fbs fbt fbu ffa fff ffi ffr ffs fft ffu fia fib fif fii fir fis fit fiu fra frb frf fri frr frs frt fru fsa fsb fsf fsi fsr fss fst fsu fta ftb ftf fti ftr fts ftt ftu fua fub fuf fui fur fus fut fuu i-f ia- iaa iab iaf iai iar ias iat iau iba ibb ibf ibi ibr ibs ibt ibu ifa ifb iff ifi ifr ifs ift ifu iia iib iif iii iir iis iit iiu ir- ira irb irf iri irr irs irt iru is- isa isb isf isi isr iss ist isu ita itb itf iti its itt itu iu- iua iub iui iur ius iut ra- raa rab raf rai rar ras rat rau rba rbb rbf rbi rbr rbs rbt rbu rfa rfb rff rfi rfr rfs rft rfu ria rib rif rii rir ris rit rra rrb rrf rri rrr rrs rrt rru rsa rsb rsf rsi rsr rss rst rsu rta rtb rtf rti rtr rts rtt rtu rua rub ruf rui rur rus rut ruu saa sab saf sai sar sas sat sau sba sbb sbf sbi sbr sbs sbt sbu sfa sfb sff sfi sfr sfs sft sfu sia sib sif sii sir sis sit siu sr- sra srb srf sri srr srs srt ss- ssa ssb ssf ssi ssr sss sst ssu sta stb stf sti str sts stt stu sua sub suf sui sur sus sut suu taa tab taf tai tar tas tat tau tba tbb tbf tbi tbr tbs tbt tbu tfa tfb tff tfi tfr tfs tft tfu tia tib tif tii tir tis tit tiu tra trb trf tri trr trs trt tru tsa tsb tsf tsi tsr tss tst tsu tta ttb ttf tti ttr tts ttt ttu tua tub tuf tui tur tus tut tuu ua- uaa uab uaf uai uar uas uat uau uba ubb ubf ubi ubr ubs ubt ubu ufa uff ufi ufr ufs uft ufu uia uib uif uii uir uis uit uiu ur- ura urb urf uri urr urs urt uru usa usb usf usi usr uss ust usu uta utb utf uti utr uts utt utu uua uur uus uut uuu

a-fu a-ii aaaa aaab aaaf aaai aaar aaas aaba aabb aabi aabt aafa aafb aaff aafi aaib aaii aais aara aari aars aart aaru aasa aasf aasi aass aast aasu aata aatf aatt aaus abaa abab abaf abai abar abas abat abau abb- abba abbb abbi abbr abbs abbt abff abia abib abir abis abit abiu abra abri abrs abs- absa absf absi abss absu abta abts abtu abua abuf abus abut afaa afar afat afbs affa affi affs afft afia afib afif afir afis afit afr- afra afri afrs afru afsa afsb afst afta afts afua afus aiai aias aiba aiff aifs aiia aiib aiir aira airi airs airt aisa aisb aisi aisr aist aita aitf aiti aitr aits aitt aitu aiui arab araf arai arar aras arat arau arba arbi arbs arfa arfb arff arfs arft arfu aria arib arif 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 asaf asai asar asas asat asau asba asbu asfa asfi asia asif 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 atfb atfs atia atif atis atit atiu atra atri atru atsb atsi atst atta atti attr atts attu atua atub atur atus auaa aufi aufs auis aur- aura auri ausa aust ausu aut- auts ba-i baaa baaf baar baas baat baba babb babi babr babs babu baff baft baia baib bair bais bait bar- bara barb barf bari barr bars bart baru basa basf basi bass bast basu bata batf bati bats batt batu bau- bauf baur bbas bbau bbbb bbbs bfas bffs bfsi bfsr bfta bfts bftt biaf biar bias biat biba bibb bibi bibs bifa biff bifi biis bira birb biri birr birs birt biru bis- bisa biss bist bisu bita bits bitt bitu brab braf brai bras brat brau brfu bria bris brit brrr brrs brsb brsr brst brus brut bsaa bsas bsat bsfa bsff bsfs bsra bsts btaa btaf btrt btss bttb btus buar buat buba bubb bubi bubs bubu buff bufr buif buir buis buit buiu bur- bura burb buri burr burs burt buru busa busi buss bust busu but- buta buti buts butt buus faaa faas faba fabi fabs fabu fafa faff fafi fair fais fait fara farb farr fars fart faru fasa fasi fass fast fata fatf fati fats fatt faur faut fbar fbis fbrs fbus ffar ffff ffii ffrr ffsa ffss fftf fiaa fiaf fiar fias fiat fiba fibs fifa fiff fifi fift fiii fira firs fisa fisi fiss fist fisu fita fiti fits fitt fiua frab fras frat frau fria frib fris frit frsb frst frta frub fsai fsas fsfi fsia fsra fssa fssf fsta ftii ftrs ftsa