a-a a-b a-t aaa aab aar aas aat aau aav ab- aba abb abr abs abt abu abv ar- ara arb arr ars art aru arv as- asa asb asr ass ast asu asv at- ata atb atr ats att atu atv au- aua aub aur aus aut auv av- ava avb avr avs avt avu b-u baa bab bar bas bat bau bav bba bbb bbr bbs bbt bbu bra brb brr brs brt bru brv bsa bsb bsr bss bst bsu bsv bta btb btr bts btt btu btv bua bub bur bus but buu bva bvb bvr bvs bvt bvu bvv ra- raa rab rar ras rat rau rav rba rbb rbr rbs rbt rbu rra rrb rrr rrs rrt rru rsa rsb rsr rss rst rsu rsv rta rtb rtr rts rtt rtu rtv rua rub rur rus rut ruu ruv rva rvb rvr rvs rvt rvu rvv saa sab sar sas sat sau sav sba sbb sbr sbs sbt sbu sbv sr- sra srb srr srs srt srv ss- ssa ssb ssr sss sst ssu ssv sta stb str sts stt stu stv sua sub sur sus sut suu suv sva svb svr svs svt svu svv taa tab tar tas tat tau tav tba tbb tbr tbs tbt tbu tbv tra trb trr trs trt tru trv tsa tsb tsr tss tst tsu tsv tta ttb ttr tts ttt ttu ttv tua tub tur tus tut tuu tuv tva tvb tvr tvs tvt tvu ua- uaa uab uar uas uat uau uav uba ubb ubr ubs ubt ubu ubv ur- ura urb urr urs urt uru usa usb usr uss ust usu usv uta utb utr uts utt utu utv uua uur uus uut uuu uva uvb uvs uvu uvv v-a vaa vab var vas vat vau vav vba vbr vbs vbv vra vrb vrr vrs vrt vru vsa vsb vsr vss vst vsu vsv vta vtb vtr vts vtt vtu vtv vur vus vut vuv vva vvb vvr vvs vvt vvv

aaaa aaab aaar aaas aaav aaba aabb aabt aara aars aart aaru aasa aass aast aasu aata aatt aaus aava abaa abab abar abas abat abau abb- abba abbb abbr abbs abbt abra abrs abs- absa abss absu abta abts abtu abua abus abut abva arab arar aras arat arau arba arbs arr- arra arrr arrs arrt arru ars- arsa arst arsu arta artr arts artv arua arub arut arva asaa asab asar asas asat asau asba asbu asra asrs asru assa assr asss asst assu asta astb astr asts astv asub asur asus asva asvs at-t ataa atab atar atas atat atbs atra atru atsb atst atta attr atts attu atua atub atur atus atvs auaa aur- aura ausa aust ausu aut- auts auvs avab avar avas avat avra avst avur avus avva baaa baar baas baat baba babb babr babs babu bar- bara barb barr bars bart baru basa bass bast basu bata bats batt batu bau- baur bava bavu bbas bbau bbbb bbbs brab bras brat brau brav brrr brrs brsb brsr brst brus brut bruv bsaa bsas bsat bsra bsts bstv btaa btrt btss bttb btus buar buat buba bubb bubs bubu bur- bura burb burr burs burt buru busa buss bust busu but- buta buts butt buus raab raas raat raba rabb rabs rabu rara rarb rars rasa rass rast rasu rata rats ratt ratu raua raub raus raut rava rbbb rbbr rbbs rbss rbst rras rrat rrrr rsaa rssa rsts rstu rsua rtas rtss rtts rtva ruas ruba rubb rubs rubu rura rurs ruru rusa russ rust rusu ruta ruts rutt rutu ruvu s-vt saab saar saas saat saba sabb sabr sabs sabu sara sarr sars sart saru sarv sasa sass sast sata satb satr sats satt satu saua saur saus saut sava savs savu sbaa sbar sbas sbbs sbsa sbst sbus sras srta srtr srtv srub ssaa ssab ssas ssat ssau ssbr ssra ssrs sssa sssb ssss ssta sstb ssts st-v stab star stas stat stau stbs stra strs stru stss sttr stub stur stus stut stuv stvs suar suas suat sub- suba subb subs sur- sura surr surs surt suru surv sus- susa suss sust susu suta sutu suus suva suvs svar svtr taa- taar taas taat taba tabb tabs tabu tara tarb tarr tars tart taru tasa tasb tasr tass tast tasu tata tatb tatr tats tatt tatu tatv taua taub taur taus taut tava tavs tbar tbas tbbs tbrb tbst tbta traa trab tras trat trau trav trra trst trtr trub trus trut truu trvs tsaa tsar tsat tsau tsav tssa tssr tsst tsts ttab ttbb ttss tttt tuar tuas tuat tuba tubb tubr tubs tubu tura turb turr turs turt turu tusa tuss tust tuta tuts tutt tutu tuva tvbs tvrr tvsa tvss tvtv uars uart uaru uasa uata uatu uatv uaua uavs ubar ubba ubra uras urat urau urba urbs urra ursa urss ursu urts urur urus urut urva us-a usaa usar usas usat usba usbr usbs usra ussa ussb ussr usss usst ussu usta ustb usts usua usus utas utau utsa uttu uuta uuuu uv-a uv-b uvaa uvas uvat uvvu vaar vaas vaat vabs vara varr vars vart varu vas- vasa vass vast vasu vata vats vatt vatu vaus vaut vava vavs vras vrav vrba vrsa vsta vtrs vurb vurt vutv vvsb vvvv

-aaa- a-vsb aaaas aaasa aaass aaata aabaa aabba aabra aarau aarts aasra aatsr abaab ababa ababs ababu abara abaru abasa abass abava abbar abbas abbat abbrs abbur abrar abras abrus absar abstr absut abtaa abtar abura aburr abust abuta abuts abutt ar-ab araat arab- araba arabs arara arars araru arass arasu arata arava aravu arbab arbar arbas arbat arbus arras arrau arrua arsat artar artas artat artur artus aruaa aruba arura aruru arus- arusa aruta aruvu arvar arvas asaba asara asasa asats asaut asava asbru asrar assab assas assat assts assur astab astar astas astat astr- astra astur asubs asura asvab atabu atara atars ataru atasu