a-a a-i a-t aaa aaf aai aar aas aat aau aax af- afa aff afi afr afs aft afu afx ai- aia aif aii air ais ait aiu aix ar- ara arf ari arr ars art aru arx as- asa asf asi asr ass ast asu asx at- ata atf ati atr ats att atu atx au- aua auf aui aur aus aut aux ax- axa axi axr axs axt axx faa faf fai far fas fat fau fax ffa fff ffi ffr ffs fft ffu ffx fia fif fii fir fis fit fiu fix fra frf fri frr frs frt fru fsa fsf fsi fsr fss fst fsu fsx fta ftf fti ftr fts ftt ftu ftx fua fuf fui fur fus fut fuu fux fxi fxr fxs fxt fxu fxx i-f ia- iaa iaf iai iar ias iat iau ifa iff ifi ifr ifs ift ifu ifx iia iif iii iir iis iit iiu iix ir- ira irf iri irr irs irt iru irx is- isa isf isi isr iss ist isu ita itf iti its itt itu itx iu- iua iui iur ius iut ixi ra- raa raf rai rar ras rat rau rax rfa rff rfi rfr rfs rft rfu ria rif rii rir ris rit rix rra rrf rri rrr rrs rrt rru rsa rsf rsi rsr rss rst rsu rsx rta rtf rti rtr rts rtt rtu rtx rua ruf rui rur rus rut ruu rux rxr rxs saa saf sai sar sas sat sau sax sfa sff sfi sfr sfs sft sfu sfx sia sif sii sir sis sit siu six sr- sra srf sri srr srs srt srx ss- ssa ssf ssi ssr sss sst ssu ssx sta stf sti str sts stt stu stx sua suf sui sur sus sut suu sux sxi sxs sxt sxu t-x taa taf tai tar tas tat tau tax tfa tff tfi tfr tfs tft tfu tfx tia tif tii tir tis tit tiu tix tra trf tri trr trs trt tru trx tsa tsf tsi tsr tss tst tsu tsx tta ttf tti ttr tts ttt ttu ttx tua tuf tui tur tus tut tuu tux txf txi txs txt txu ua- uaa uaf uai uar uas uat uau ufa uff ufi ufr ufs uft ufu ufx uia uif uii uir uis uit uiu ur- ura urf uri urr urs urt uru urx usa usf usi usr uss ust usu usx uta utf uti utr uts utt utu utx uua uur uus uut uuu uxf uxr uxt uxu xaa xaf xar xas xat xau xfa xfs xft xfx xia xii xis xit xiu xix xrf xrt xrx xsa xsi xss xst xtf xti xtr xts xtx xui xus xxi xxx

a-fu a-ii aaaa aaaf aaai aaar aaas aafa aaff aafi aaii aais aara aari aars aart aaru aasa aasf aasi aass aast aasu aata aatf aatt aaus afaa afar afat affa affi affs afft afia afif afir afis afit afix afr- afra afri afrs afru afsa afst afta afts afua afus aiai aias aiff aifs aiia aiir aira airi airs airt airx aisa aisi aisr aist aita aitf aiti aitr aits aitt aitu aiui aixa aixi araf arai arar aras arat arau arax arfa arff arfs arft arfu aria arif arii aris arit arr- arra arri arrr arrs arrt arru ars- arsa arsi arst arsu arta arti artr arts artx arua arui arut asaa asaf asai asar asas asat asau asfa asfi asia asif asii asir asis asit asix asra asrs asru assa assi assr asss asst assu asta asti astr asts asui asur asus at-t at-x ataa atai atar atas atat atax atfs atia atif atis atit atiu atra atri atru atrx atsi atst atta atti attr atts attu atua atur atus auaa aufi aufs auis aur- aura auri ausa aust ausu aut- auts auxa axaf axar axat axfr axfs axi- axia axis faaa faas fafa faff fafi fair fais fait faix fara farr fars fart faru fasa fasi fass fast fata fatf fati fats fatt faur faut faux faxi ffar ffff ffii ffrr ffsa ffss fftf fiaa fiaf fiar fias fiat fifa fiff fifi fift fiii fira firs fisa fisi fiss fist fisu fita fiti fits fitt fiua fixt fixx fras frat frau frax fria fris frit frst frta fsai fsas fsfi fsia fsix fsra fssa fssf fsta ftii ftrs ftsa ftsr fuar fuat fuff fufu fuir fuit fur- fura furi furr furs furt fusa fusi fuss fust fusu futa futi futs futu fuxi iaaa iaai iaas iaat iaff iaia iais iara iars iart iaru iasa iasi iasr iata iati ifaa ifar ifas ifat ifis ifit ifra ifrf ifri ifsa ifta iias iifa iiii iiis iiit iira iirs iisi iisr iist iisu iita iitr iitt iraf irai irar iras irfu iri- iria iris irix irra irri irrs irsa irsf irta irtf irti irts irus is-a isaf isai isar isas isat isfa isia isis isit isra isri issa issf issi issr isss issu ista isti istr ists isua isus itaa itaf itai itar itas itat itfa itia itif itis itra itrf itri itrs itsa itsf itsi itsu itta ittf itur iuiu iura iuss iust ixia ixxi raaf raas raat rafa raff rafi raft raia raif raii rair rais rait raiu raix rara rarf rari rars rasa rasi rass rast rasu rata ratf rati rats ratt ratu raua rauf raus raut raxa raxi riaa riai rias riat riau rifa riff rifs rift rifu riia riif riis riri rirs risa risi riss rist risu rita riti rits ritt ritu rius rras rrat rrif rrrr rsaa rsaf rsai rsis rssa rsts rstu rsua rtai rtas rtss rtts ruas rufa ruff ruft ruif ruis ruit rura ruri rurs ruru rusa rusi russ rust rusu ruta ruti ruts rutt rutu s-ii sa-x saaf saar saas saat safa saff safi safr saft safu saia saif sair sais sait saix sara sarf sari sarr sars sart saru sasa sasf sasi sass sast sata sati satr sats satt satu saua sauf