a-a a-b a-t aaa aab aan aar aas aat aau ab- aba abb abn abr abs abt abu an- ana anb ann anr ans ant anu ar- ara arb arn arr ars art aru as- asa asb asn asr ass ast asu at- ata atb atn atr ats att atu au- aua aub aun aur aus aut b-u baa bab ban bar bas bat bau bba bbb bbn bbr bbs bbt bbu bna bnb bnn bnr bns bnt bnu bra brb brn brr brs brt bru bsa bsb bsn bsr bss bst bsu bta btb btn btr bts btt btu bua bub bun bur bus but buu naa nab nan nar nas nat nau nba nbb nbn nbr nbs nbt nbu nna nnb nnn nns nnt nnu nra nrb nrn nrr nrs nrt nru nsa nsb nsn nsr nss nst nsu nta ntb ntn ntr nts ntt ntu nua nub nun nur nus nut nuu ra- raa rab ran rar ras rat rau rba rbb rbn rbr rbs rbt rbu rna rnb rnn rnr rns rnt rnu rra rrb rrn rrr rrs rrt rru rsa rsb rsn rsr rss rst rsu rta rtb rtn rtr rts rtt rtu rua rub run rur rus rut ruu saa sab san sar sas sat sau sba sbb sbn sbr sbs sbt sbu sna snb snn snr sns snt snu sr- sra srb srn srr srs srt ss- ssa ssb ssn ssr sss sst ssu sta stb stn str sts stt stu sua sub sun sur sus sut suu taa tab tan tar tas tat tau tba tbb tbn tbr tbs tbt tbu tna tnb tnn tnr tns tnt tra trb trn trr trs trt tru tsa tsb tsn tsr tss tst tsu tta ttb ttn ttr tts ttt ttu tua tub tun tur tus tut tuu ua- uaa uab uan uar uas uat uau uba ubb ubn ubr ubs ubt ubu un- una unb unn unr uns unt unu ur- ura urb urn urr urs urt uru usa usb usn usr uss ust usu uta utb utn utr uts utt utu uua uun uur uus uut uuu

-ana a-un aaaa aaab aaan aaar aaas aaba aabb aabt aana aara aars aart aaru aasa aass aast aasu aata aatt aaus abaa abab aban abar abas abat abau abb- abba abbb abbr abbs abbt abnu abra abrs abs- absa abss absu abta abts abtu abua abun abus abut ana- anaa anab anan anar anas anat anau anba anbb anbu anna annb anns annt ansa ansu ant- anta antr ants antt antu anua anub anun anus anut arab aran arar aras arat arau arba arbs arna arns arnt arr- arra arrr arrs arrt arru ars- arsa arst arsu arta artr arts arua arub arun arut asaa asab asan asar asas asat asau asba asbu asra asrs asru assa assn assr asss asst assu asta astb astr asts asub asun asur asus at-t ataa atab atan atar atas atat atbs atna atns atra atrn atru atsb atst atta attn attr atts attu atua atub atun atur atus auaa auna aunt aur- aura ausa aust ausu aut- auts baaa baan baar baas baat baba babb babr babs babu bana bann banr bans bant banu bar- bara barb barn barr bars bart baru basa bass bast basu bata batn bats batt batu bau- baur bbas bbau bbbb bbbs bnas bnrr bnss bnta brab bran bras brat brau brna brns brrr brrs brsb brsr brst brun brus brut bsaa bsas bsat bsns bsra bsts btaa btan btrt btss bttb btus buar buat buba bubb bubs bubu buna bunb bunn buns bunt bunu bur- bura burb burn burr burs burt buru busa buss bust busu but- buta buts butt buus naaa naab naan naar naas naat naba nabs nabu nan- nana nanb nann nans nant nanu nara narn narr nars nart naru nas- nasa nasb nasr nass nast nasu nata nats natt natu naur naus naut nbaa nbar nbas nnnn nnsa nnss nntn nrab nras nrna nrsa nrta nrts nsaa nsar nsna nsnr nsra nssa nssb nssr nsss nsts nstu nsub ntnu ntru ntsb ntss ntsu nttr nuan nuba nubs nuna nunn nuns nunt nura nurn nurr nurs nurt nuru nuss nust nusu nuts nutt nutu raab raan raas raat raba rabb rabs rabu rana rann rans rant rara rarb rars rasa rass rast rasu rata rats ratt ratu raua raub raun raus raut rbbb rbbr rbbs rbss rbst rnas rnbr rnnt rnut rras rrat rrna rrrr rrun rsaa rsna rsnn rsnr rssa rsts rstu rsua rtan rtas rtns rtss rtts ruan ruas ruba rubb rubs rubu runa runn runs runt rura rurs ruru rusa russ rust rusu ruta ruts rutt rutu ruun saab saan saar saas saat saba sabb sabr sabs sabu sana sann sanr sans sant sanu sara sarn sarr sars sart saru sasa sass sast sata satb satn satr sats satt satu saua saun saur saus saut sbaa sbar sbas sbbs sbsa sbst sbtn sbus snab snar snas snat snba snns snra snrs sntr snub snur snus sras srna srnn srta srtr srub ssaa ssab ssan ssas ssat ssau ssbn ssbr ssns ssra ssrs sssa sssb ssss ssta sstb ssts stab stan star stas stat stau stbs stnn stnr stns stra strn strs stru stss sttr stub stun stur stus stut suan suar suas suat sub- suba subb subs sun- suna sunb sunn suns sunt sunu sur- sura surn surr surs surt suru sus- susa suss sust susu suta sutu suus taa- taan taar taas taat taba tabb tabs tabu tana tann tans tant tanu tara tarb tarn tarr tars tart taru tasa tasb tasr tass tast tasu tata tatb tatr tats tatt tatu taua taub taur taus taut tbar tbas tbbs tbrb tbst tbta tnts tnut traa trab tran tras trat trau trna trra trst trtr trub trun trus trut truu tsaa tsar tsat tsau tsna tssa tssr tsst tsts tsun ttab ttbb ttss tttt tuan tuar tuas tuat tuba tubb tubr tubs tubu tuna tunb tunn