a-a a-b a-t aaa aab aag aar aas aat aau ab- aba abb abg abr abs abt abu ag- aga agb agg agr ags agt agu ar- ara arb arg arr ars art aru as- asa asb asg asr ass ast asu at- ata atb atg atr ats att atu au- aua aub aug aur aus aut b-u baa bab bag bar bas bat bau bba bbb bbg bbr bbs bbt bbu bga bgb bgg bgr bgs bgt bgu bra brb brg brr brs brt bru bsa bsb bsg bsr bss bst bsu bta btb btg btr bts btt btu bua bub bug bur bus but buu gaa gab gag gar gas gat gau gba gbg gbr gbs gbt gbu gga ggb ggg ggr ggs ggt ggu gra grb grg grr grs grt gru gsa gsb gsg gsr gss gst gsu gta gtb gtg gtr gts gtt gtu gu- gua gub gug gur gus gut guu ra- raa rab rag rar ras rat rau rba rbb rbg rbr rbs rbt rbu rga rgb rgg rgr rgs rgt rra rrb rrg rrr rrs rrt rru rsa rsb rsg rsr rss rst rsu rta rtb rtg rtr rts rtt rtu rua rub rug rur rus rut ruu saa sab sag sar sas sat sau sba sbb sbg sbr sbs sbt sbu sga sgb sgg sgr sgs sgt sgu sr- sra srb srg srr srs srt ss- ssa ssb ssg ssr sss sst ssu sta stb stg str sts stt stu sua sub sug sur sus sut suu taa tab tag tar tas tat tau tba tbb tbg tbr tbs tbt tbu tga tgb tgg tgr tgs tgt tgu tra trb trg trr trs trt tru tsa tsb tsg tsr tss tst tsu tta ttb ttg ttr tts ttt ttu tua tub tug tur tus tut tuu ua- uaa uab uag uar uas uat uau uba ubb ubg ubr ubs ubt ubu uga ugb ugg ugr ugs ugt ugu ur- ura urb urg urr urs urt uru usa usb usg usr uss ust usu uta utb utr uts utt utu uua uug uur uus uut uuu

aaaa aaab aaar aaas aaba aabb aabt aara aars aart aaru aasa aass aast aasu aata aatt aaus abaa abab abag abar abas abat abau abb- abba abbb abbr abbs abbt abra abrs abs- absa abss absu abta abts abtu abua abug abus abut agag agar agas agat agau agba agga aggu agra agsa agsg agst agsu agta agtr agts agua agur agus agut arab arag arar aras arat arau arba arbs arga argb args arr- arra arrg arrr arrs arrt arru ars- arsa arst arsu arta artr arts arua arub arug arut asaa asab asag asar asas asat asau asba asbu asgt asra asrg asrs asru assa assr asss asst assu asta astb astr asts asub asur asus at-t ataa atab atar atas atat atbs atra atru atsb atst atta attr atts attu atua atub atug atur atus auaa auga augs aur- aura ausa aust ausu aut- auts auug baaa baar baas baat baba babb babr babs babu baga bagg bags bagt bar- bara barb barg barr bars bart baru basa bass bast basu bata bats batt batu bau- baug baur bbas bbau bbbb bbbs bbga bbrg bggs bgst brab brag bras brat brau brrr brrs brsb brsr brst brug brus brut bsaa bsas bsat bsgs bsra bsts btaa btrt btss bttb btus buar buat buba bubb bubs bubu buga bugg bugs bur- bura burb burg burr burs burt buru busa buss bust busu but- buta buts butt buus gaar gaas gaba gabb gabr gabs gabt gabu gaga gagg gags gagu gara garb garg garr gars gart gasa gasb gasr gass gast gata gatr gats gatt gaua gaub gaur gaus gaut gbag gbas gbbs ggbt gggg ggss grab gras grat grau grbr grrr grrs grss grua grub grug grur grus grut gsab gsat gstr gsur gtaa gtbr gtta guaa guag guar guat guba gubb gubs gubu guga gugb gugg gugu gura gurb gurg gurr gurs gurt guru gusa gusb guss gust guta guts gutt gutu guus raab raag raas raat raba rabb rabs rabu raga ragg rags ragu rara rarb rars rasa rass rast rasu rata rats ratt ratu raua raub raus raut rbbb rbbr rbbs rbss rbst rgba rgtr rgts rras rrat rrrr rsaa rsgb rssa rsts rstu rsua rtas rtgs rtss rtts ruag ruas ruba rubb rubs rubu ruga rugg rugs rura rurs ruru rusa russ rust rusu ruta ruts rutt rutu saab saag saar saas saat saba sabb sabr sabs sabu saga sagg sags sagt sagu sara sarg sarr sars sart saru sasa sass sast sata satb satg satr sats satt satu saua saur saus saut sbaa sbar sbas sbbs sbsa sbst sbus sgaa sgau sggg sggs sgss sgta sgts sras srgb srta srtr srub ssaa ssab ssas ssat ssau ssbr ssgs ssgt ssra ssrg ssrs sssa sssb ssss ssta sstb ssts stab stag star stas stat stau stbs stgr stra strs stru stss sttr stub stug stur stus stut suar suas suat sub- suba subb subg subs sug- suga sugg sur- sura surg surr surs surt suru sus- susa suss sust susu suta sutu suus taa- taag taar taas taat taba tabb tabs tabu taga tagg tags tagu tara tarb targ tarr tars tart taru tasa tasb tasr tass tast tasu tata tatb tatr tats tatt tatu taua taub taur taus taut tbar tbas tbbs tbgs tbrb tbst tbta tgts traa trab trag tras trat trau trra trst trtr trub trug trus trut truu tsaa tsar tsat tsau tsgt tssa tssg tssr tsst tsts ttab ttbb ttss tttt tuar tuas tuat tuba tubb tubr tubs tubu tuga tugg tugs tugu tura turb turg turr turs turt turu tusa tuss tust tuta tuts tutt tutu uars uart uaru uasa uata uatu uaua ubar ubba ubra ugab ugar uggs uggt ugra ugta ugur uguu uras urat urau urba urbs urga urgu urra ursa urss ursu urts urur urus urut us-a usaa usag usar usas