a-a a-b a-i aaa aab aag aai aar aas aau ab- aba abb abg abi abr abs abu ag- aga agb agg agi agr ags agu ai- aia aib aig aii air ais aiu ar- ara arb arg ari arr ars aru as- asa asb asg asi asr ass asu au- aua aub aug aui aur aus b-u baa bab bag bai bar bas bau bba bbb bbg bbi bbr bbs bbu bga bgb bgg bgi bgr bgs bgu bi- bia bib big bii bir bis biu bra brb brg bri brr brs bru bsa bsb bsg bsi bsr bss bsu bua bub bug bui bur bus buu gaa gab gag gai gar gas gau gba gbg gbi gbr gbs gbu gga ggb ggg ggi ggr ggs ggu gia gib gig gii gir gis giu gra grb grg gri grr grs gru gsa gsb gsg gsi gsr gss gsu gu- gua gub gug gui gur gus guu ia- iaa iab iag iai iar ias iau iba ibb ibg ibi ibr ibs ibu iga igb igg igi igr igs igu iia iib iii iir iis iiu ir- ira irb irg iri irr irs iru is- isa isb isg isi isr iss isu iu- iua iub iug iui iur ius ra- raa rab rag rai rar ras rau rba rbb rbg rbi rbr rbs rbu rga rgb rgg rgi rgr rgs ria rib rig rii rir ris rra rrb rrg rri rrr rrs rru rsa rsb rsg rsi rsr rss rsu rua rub rug rui rur rus ruu saa sab sag sai sar sas sau sba sbb sbg sbi sbr sbs sbu sga sgb sgg sgi sgr sgs sgu sia sib sig sii sir sis siu sr- sra srb srg sri srr srs ss- ssa ssb ssg ssi ssr sss ssu sua sub sug sui sur sus suu ua- uaa uab uag uai uar uas uau uba ubb ubg ubi ubr ubs ubu uga ugb ugg ugi ugr ugs ugu uia uib uig uii uir uis uiu ur- ura urb urg uri urr urs uru usa usb usg usi usr uss usu uua uug uur uus uuu

a-ii aaaa aaab aaai aaar aaas aaba aabb aabi aaib aaii aais aara aari aars aaru aasa aasi aass aasu aaus abaa abab abag abai abar abas abau abb- abba abbb abbi abbr abbs abia abib abig abir abis abiu abra abri abrs abs- absa absi abss absu abua abug abus agag agai agar agas agau agba agga aggi aggu agia agib agig agii agir agis agra agri agsa agsg agsu agua agui agur agus aiai aias aiba aiga aiia aiib aiir aira airi airs aisa aisb aisg aisi aisr aiui arab arag arai arar aras arau arba arbi arbs arga argb argi args aria arib arig arii aris arr- arra arrg arri arrr arrs arru ars- arsa arsi arsu arua arub arug arui asaa asab asag asai asar asas asau asba asbu asia asii asir asis asra asrg asrs asru assa assi assr asss assu asub asui asur asus auaa auga augi augs auis aur- aura auri ausa ausu auug ba-i baaa baar baas baba babb babi babr babs babu baga bagg bagi bags baia baib baig bair bais bar- bara barb barg bari barr bars baru basa basi bass basu bau- baug baur bbas bbau bbbb bbbs bbga bbrg bggs bgia biar bias biba bibb bibi bibs biga bigb bigg bigs bigu biis bira birb birg biri birr birs biru bis- bisa biss bisu brab brag brai bras brau bria brig bris brrr brrs brsb brsr brug brus bsaa bsas bsgs bsra buar buba bubb bubi bubs bubu buga bugg bugi bugs buir buis buiu bur- bura burb burg buri burr burs buru busa busi buss busu buus gaar gaas gaba gabb gabi gabr gabs gabu gaga gagg gagi gags gagu gaia gaig gair gais gaiu gara garb garg gari garr gars gasa gasb gasi gasr gass gaua gaub gaur gaus gbag gbas gbbs gggg ggss giaa giai gias giba gibb gibs giga gigg gigi gigs giis gira girg giri girr girs giru gisa giss giur gius grab grai gras grau grbr gria grib grig gris grrr grrs grss grua grub grug grui grur grus gsab gsis gsur guaa guag guar guba gubb gubi gubs gubu guga gugb gugg gugi gugu guia guib guis gura gurb gurg guri gurr gurs guru gusa gusb guss guus iaaa iaai iaas iaba iags iaia iais iara iars iaru iasa iasi iasr ibar ibas ibga ibia ibis ibra ibri ibsa ibss ibus igar igas igba igga iggs igia igis igra igri igua igus iias iiii iiis iira iirs iisi iisr iisu irai irar iras irgs iri- iria irig iris irra irri irrs irsa irsg irus is-a isai isar isas isba isia isis isra isrg isri issa issi issr isss issu isua isus iugs iuiu iura iuss raab raag raas raba rabb rabi rabs rabu raga ragg ragi rags ragu raia raig raii rair rais raiu rara rarb rari rars rasa rasi rass rasu raua raub raus rbbb rbbr rbbs rbis rbss rgba rgbi riaa riab riai rias riau rib- riba ribs ribu riga rigg rigi rigs rigu riia riis riri rirs risa risi riss risu rius rras rrrr rsaa rsai rsbi rsgb rsis rssa rsua ruag ruas ruba rubb rubi rubs rubu ruga rugg rugi rugs ruis rura ruri rurs ruru rusa rusi russ rusu s-ib s-ii saab saag saar saas saba sabb sabi sabr sabs sabu saga sagg sagi sags sagu saia sair sais sara sarg sari sarr sars saru sasa sasi sass saua saur saus sbaa sbai sbar sbas sbbs sbia sbig sbsa sbsi sbus sgaa sgau sggg sggs sgss siaa siab siag siai sias siau siba sibi sibs sibu siga sigg sigi sigs sira siri sirr sirs siru sisa sisi siss sisu siui sius sras srgb srib sris srub ssaa ssab ssas ssau ssbr ssgs ssis ssra ssrg ssri ssrs sssa sssb sssi ssss suar suas sub- suba subb subg subi subs sug- suga