a-a a-b aaa aab aad aar aas aau aax ab- aba abb abd abr abs abu abx ad- ada adb add adr ads adu adx ar- ara arb ard arr ars aru arx as- asa asb asd asr ass asu asx au- aua aub aud aur aus aux ax- axa axr axs axx b-u baa bab bad bar bas bau bax bba bbb bbd bbr bbs bbu bbx bda bdb bdd bdr bds bdu bdx bra brb brd brr brs bru brx bsa bsb bsd bsr bss bsu bsx bua bub bud bur bus buu bux bxb bxd bxx daa dab dad dar das dau dax dba dbb dbd dbr dbs dbu dbx dda ddb ddd ddr dds ddu ddx dra drb drd drr drs dru drx dsa dsb dsd dsr dss dsu dsx dua dub dud dur dus dux dxd dxr dxs dxx ra- raa rab rad rar ras rau rax rba rbb rbd rbr rbs rbu rbx rda rdb rdd rdr rds rdu rdx rra rrb rrd rrr rrs rru rsa rsb rsd rsr rss rsu rsx rua rub rud rur rus ruu rux rxr rxs saa sab sad sar sas sau sax sba sbb sbd sbr sbs sbu sbx sda sdb sdd sdr sds sdu sr- sra srb srd srr srs srx ss- ssa ssb ssd ssr sss ssu ssx sua sub sud sur sus suu sux sxs sxu ua- uaa uab uad uar uas uau uba ubb ubr ubs ubu ubx uda udb udd udr uds udu udx ur- ura urb urd urr urs uru urx usa usb usd usr uss usu usx uua uur uus uuu uxb uxr uxu xaa xad xar xas xau xbr xbx xda xdb xdr xds xrd xrx xsa xsb xss xus xxx

aaaa aaab aaad aaar aaas aaba aabb aabd aada aads aadu aara aard aars aaru aasa aasd aass aasu aaus abaa abab abad abar abas abau abax abb- abba abbb abbr abbs abda abdu abra abrs abs- absa absd abss absu abua abud abus adaa adab adad adar adas adba adda addd addr adds addu adra adrs adsa adsr adss adua adub adur arab arad arar aras arau arax arba arbs arda ards ardu arr- arra arrr arrs arru ars- arsa arsd arsu arua arub arud asaa asab asad asar asas asau asba asbu asda asds asra asrs asru assa assd assr asss assu asub asud asur asus auaa aur- aura aurd ausa ausd ausu auxa axar ba-x baaa baad baar baas baba babb babr babs babu bada badb badd badr bads badu bar- bara barb bard barr bars baru barx basa bass basu bau- baud baur baux bbad bbas bbau bbbb bbbs bbdd bd-r bdsd brab brad bras brau brax brda brds brrr brrs brsb brsr brud brus brux bsaa bsas bsbd bsra bsrd bssd buad buar buba bubb bubs bubu buda budb budd buds budu bur- bura burb burd burr burs buru busa buss busu busx buus buxa daab daad daar daas daau daba dabb dabs dabu dada dads dadu dara darb dard darr dars daru dasa dasb dasd dass daub daud daur daus daux dbar dbas dbrs dbsa dbss dbus dddd ddss ddub draa drab drad drar dras drau drax drba drda drra drrs drsa drua drub drus druu dsba dsda dsdr dsrr dssa duaa duab duad duar duas dub- duba dubb dubs dubu duda dudd duds dudu dura duru dusa duur dxab dxbr dxdr dxds dxra dxrd dxrr dxrx dxss dxur dxxr dxxx raab raad raas raba rabb rabs rabu rada radd radr rads radu radx rara rarb rars rasa rasd rass rasu raua raub raud raus raxa rbbb rbbr rbbs rbds rbsd rbss rdas rrad rras rrrr rsaa rsdd rsds rssa rsua ruad ruas ruba rubb rubs rubu ruda rudd ruds rura rurd rurs ruru rusa russ rusu ruud sa-x saab saad saar saas saba sabb sabr sabs sabu sada sadb sadd sadr sads sadu sara sard sarr sars saru sasa sasd sass saua saud saur saus saux saxa sbaa sbar sbas sbbs sbds sbsa sbsd sbus sdau sdax sdba sdds sdrs sdss sdsu sras srsd srub ssaa ssab ssas ssau ssbr ssdd ssra ssrs sssa sssb ssss suar suas sub- suba subb subd subs suda sudd suds sur- sura surd surr surs suru sus- susa susd suss susu suus sux- uars uaru uasa uasd uaua ubar ubba ubra ubud udaa udad udar udas udau udds udra udsd urad uras urau urba urbs urda urds urdu urra ursa urss ursu urur urus us-a usaa usad usar usas usba usbr usbs usda usds usra ussa ussb ussr usss ussu usua usus uuuu uxus xaar xads xara xbar xbra xrdb xrds xuda xura xurs xuxa xuxu xxxx

-aaa- -abad aaaas aaasa aaass aabaa aabba aabra aadas aarau aasra abaab ababa ababs ababu abada abara abaru abasa abass abbad abbar abbas abbrs abbud abbur abrad abrar abras abrud abrus absar abuda abura aburr adaba adada adads adara adars adasa addas addax addra addsa addur adrad adrar adras ads-b aduba ar-ab arab- araba arabs arada arads arara arars araru arass arasu araux araxa arbab arbar arbas arbus ardab ardas ardra ardua ardud arras arrau arrua aruaa aruba arura aruru arus- arusa asaba asada asara asasa asbad asbru asdas asrar assab assad assas assur asubs asuda asura asxas auass auaxa aubad aubas audad audax audra audru aurad aurar auras aurra ausar ausra aussa axura baard baars babar babas babau babax babbs babra babur babus badar badas badra badur bar-x baraa barab barad barar baras barba barbs barbu barda bards bardu barra barrs barru barsa barss barua barud barus basab basad basar basra bassa bassu bauds baura bauru bbuss bdubs braas brada brads bradu brard brasa brass braud braux brdda brrar brrrr brud- bruds brusa bruss bruxa bsaba buada bubas bubba budda budds buddu budur buraa buras burbs burda burds burra burrs burru bursa burud burus busaa busad busra bussa bussu busua busur busuu buxar buxus d-a-d d-bus d-rad daada daara daasa dabar dabas dabba dabbs dabbu dabra dabua