a-a a-i aaa aaf aag aai aar aas aau aax af- afa aff afg afi afr afs afu afx ag- aga agf agg agi agr ags agu agx ai- aia aif aig aii air ais aiu aix ar- ara arf arg ari arr ars aru arx as- asa asf asg asi asr ass asu asx au- aua auf aug aui aur aus aux ax- axa axi axr axs axx faa faf fag fai far fas fau fax ffa fff ffg ffi ffr ffs ffu ffx fga fgf fgg fgi fgr fgs fia fif fig fii fir fis fiu fix fra frf frg fri frr frs fru fsa fsf fsg fsi fsr fss fsu fsx fua fuf fug fui fur fus fuu fux fxg fxi fxr fxs fxu fxx gaa gaf gag gai gar gas gau gfa gff gfi gfr gfs gfx gga ggg ggi ggr ggs ggu gia gif gig gii gir gis giu gra grf grg gri grr grs gru grx gsa gsf gsg gsi gsr gss gsu gsx gu- gua guf gug gui gur gus guu gxa gxf gxs i-f ia- iaa iaf iag iai iar ias iau ifa iff ifg ifi ifr ifs ifu ifx iga igf igg igi igr igs igu iia iif iii iir iis iiu iix ir- ira irf irg iri irr irs iru irx is- isa isf isg isi isr iss isu iu- iua iug iui iur ius ixi ra- raa raf rag rai rar ras rau rax rfa rff rfg rfi rfr rfs rfu rga rgf rgg rgi rgr rgs rgx ria rif rig rii rir ris rix rra rrf rrg rri rrr rrs rru rsa rsf rsg rsi rsr rss rsu rsx rua ruf rug rui rur rus ruu rux rxr rxs saa saf sag sai sar sas sau sax sfa sff sfg sfi sfr sfs sfu sfx sga sgf sgg sgi sgr sgs sgu sgx sia sif sig sii sir sis siu six sr- sra srf srg sri srr srs srx ss- ssa ssf ssg ssi ssr sss ssu ssx sua suf sug sui sur sus suu sux sxi sxs sxu ua- uaa uaf uag uai uar uas uau ufa uff ufg ufi ufr ufs ufu ufx uga ugf ugg ugi ugr ugs ugu ugx uia uif uig uii uir uis uiu ur- ura urf urg uri urr urs uru urx usa usf usg usi usr uss usu usx uua uug uur uus uuu uxf uxr uxu xaa xaf xag xar xas xau xfa xfs xfx xgi xia xii xis xiu xix xrf xrx xsa xsi xss xui xus xxi xxx

a-fu a-ii aaaa aaaf aaai aaar aaas aafa aaff aafi aaii aais aara aari aars aaru aasa aasf aasi aass aasu aaus afaa afar affa affi affs afgf afia afif afig afir afis afix afr- afra afri afrs afru afsa afua afus agag agai agar agas agau agfa agga aggi aggu agia agig agii agir agis agra agri agsa agsg agsu agua agui agur agus aiai aias aiff aifs aiga aiia aiir aira airi airs airx aisa aisg aisi aisr aiui aixa aixi araf arag arai arar aras arau arax arfa arff arfs arfu arga argi args aria arif arig arii aris arr- arra arrg arri arrr arrs arru ars- arsa arsi arsu arua arug arui asaa asaf asag asai asar asas asau asfa asfi asia asif asii asir asis asix asra asrg asrs asru assa assi assr asss assu asui asur asus auaa aufi aufs auga augi augs auis aur- aura auri ausa ausu auug auxa axaf axar axfr axfs axi- axia axis faaa faas fafa faff fafg fafi fagg fagi fags fagu fair fais faix fara farg farr fars faru fasa fasi fass faur faux faxi ffar ffff ffii ffrr ffsa ffss fiaa fiaf fiar fias fifa fiff fifi figa figg figs fiii fira firs fisa fisi fiss fisu fiua fixx frag fras frau frax fria frig fris frug fsai fsas fsfi fsgs fsia fsix fsra fssa fssf fuar fuff fufu fuga fugi fugs fugu fuig fuir fur- fura furg furi furr furs fusa fusi fuss fusu fuxi gaar gaas gafa gaff gafi gaga gagg gagi gags gagu gaia gaig gair gais gaiu gara garf garg gari garr gars gasa gasi gasr gass gasx gaua gaur gaus gffa ggfg gggg ggss giaa giai gias giff gifs gifu giga gigg gigi gigs giis gira girg giri girr girs giru gisa giss giur gius graf grai gras grau grfa gria grif grig gris grrr grrs grss grua gruf grug grui grur grus gsif gsis gsix gsur guaa guag guar gufa guff guga gugg gugi gugu guia guis gura gurg guri gurr gurs guru gusa guss guus iaaa iaai iaas iaff iags iaia iais iara iars iaru iasa iasi iasr ifaa ifar ifas ifis ifra ifrf ifri ifsa igar igas igfa igga iggs igia igis igra igri igua igus iias iifa iiii iiis iira iirs iisi iisr iisu iraf irai irar iras irfu irgs iri- iria irig iris irix irra irri irrs irsa irsf irsg irus is-a isaf isai isar isas isfa isia isis isra isrg isri issa issf issi issr isss issu isua isus iugs iuiu iura iuss ixia ixxi raaf raag raas rafa raff rafi raga ragg ragi rags ragu raia raif raig raii rair rais raiu raix rara rarf rari rars rasa rasi rass rasu raua rauf raus raxa raxi rfgs riaa riai rias riau rifa riff rifs rifu riga rigg rigi rigs rigu riia riif riis riri rirs risa risi riss risu rius rras rrif rrrr rsaa rsaf rsai rsis rssa rsua ruag ruas rufa ruff ruga rugg rugi rugs ruif ruis rura ruri rurs ruru rusa rusi russ rusu s-ii sa-x saaf saag saar saas safa saff safi safr safu saga sagg sagi sags sagu saia saif sair sais saix sara sarf sarg sari sarr sars saru sasa sasf sasi sass saua sauf saur saus saux saxa saxi sfar sfas sfax sfia sfra sfss sfsu sgaa sgau sggg sggs sgss siaa siaf siag siai sias