a-a a-b aaa aab aad aar aau ab- aba abb abd abr abu ad- ada adb add adr adu ar- ara arb ard arr aru au- aua aub aud aur b-u baa bab bad bar bau bba bbb bbd bbr bbu bda bdb bdd bdr bdu bra brb brd brr bru bua bub bud bur buu daa dab dad dar dau dba dbb dbd dbr dbu dda ddb ddd ddr ddu dra drb drd drr dru dua dub dud dur ra- raa rab rad rar rau rba rbb rbd rbr rbu rda rdb rdd rdr rdu rra rrb rrd rrr rru rua rub rud rur ruu ua- uaa uab uad uar uau uba ubb ubr ubu uda udb udd udr udu ur- ura urb urd urr uru uua uur uuu

aaaa aaab aaad aaar aaba aabb aabd aada aadu aara aard aaru abaa abab abad abar abau abb- abba abbb abbr abda abdu abra abua abud adaa adab adad adar adba adda addd addr addu adra adua adub adur arab arad arar arau arba arda ardu arr- arra arrr arru arua arub arud auaa aur- aura aurd baaa baad baar baba babb babr babu bada badb badd badr badu bar- bara barb bard barr baru bau- baud baur bbad bbau bbbb bbdd bd-r brab brad brau brda brrr brud buad buar buba bubb bubu buda budb budd budu bur- bura burb burd burr buru daab daad daar daau daba dabb dabu dada dadu dara darb dard darr daru daub daud daur dbar dddd ddub draa drab drad drar drau drba drda drra drua drub druu duaa duab duad duar dub- duba dubb dubu duda dudd dudu dura duru duur raab raad raba rabb rabu rada radd radr radu rara rarb raua raub raud rbbb rbbr rrad rrrr ruad ruba rubb rubu ruda rudd rura rurd ruru ruud uaru uaua ubar ubba ubra ubud udaa udad udar udau udra urad urau urba urda urdu urra urur uuuu

-aaa- -abad aabaa aabba aabra aarau abaab ababa ababu abada abara abaru abbad abbar abbud abbur abrad abrar abrud abuda abura aburr adaba adada adara addra addur adrad adrar aduba ar-ab arab- araba arada arara araru arbab arbar ardab ardra ardua ardud arrau arrua aruaa aruba arura aruru aubad audad audra audru aurad aurar aurra baard babar babau babra babur badar badra badur baraa barab barad barar barba barbu barda bardu barra barru barua barud baura bauru brada bradu brard braud brdda brrar brrrr brud- buada bubba budda buddu budur buraa burda burra burru burud d-a-d d-rad daada daara dabar dabba dabbu dabra dabua dabur dadar dadau dadda dadra dadur daraa darab darba darbu darda darra darur dauda daura ddddd draba duara dubar dubau dubba dubra dudar dudua durab durba durra ra-ra raaba raard rabab rabad rabba rabda rabud radar radau rauda rubab rubba rubra rudar rudra u-dub uarda udara uraba urbar urubu uuard uurad uuuuu

aaaaba ababda abburu abdaru adarra addada adrara aduadu aduard ararad araua araura arbra ardara arraba arruda aruaru baabaa baabar baabda baarbu babbar babrru babura baburd badara badaud badbad badbar badr-b badrud badura barada barara barbad barbar barbra bardar barrad baruar baurua bbbbbb braura brubru buabad bububu budara bududa burbur burdur burrda dababa dabara dabdab dadaab dadada dadara daraar darara darbar dardar darrud dubdub durau durbar durdar raabau rababa rabaud radara radaur radura rubarb rubbra rudaba rudbar rudrur udburu uruara

abadaba abdabad abradab ardabur ardudar baabarr barabad barabra bararud barbara barbuda bardaru barraud barudar bau-bau bbbbbbb brarud burarra burrard buruuba dabbaba darabad darrara daurdad durabad durdura radabad rubadub

abadabad arababad babaabad badrabad bar-abba barabara bardabad bbbbbbbb bruara bu-ba-bu burdaard buruburu darbarud dudadudu rabadaba ruba-dub rubarabr

abbabubba baabaabaa badabadda braudabad dabu-dabu darababad ddddddddd dub-a-dub rub-a-dub

barad-dur rubadubdub

rub-a-dub-dub

aaaaaaaaaaaaaaa bbbbbbbbbbbbbbb