a-a a-b aaa aab aad aao aar aau aav ab- aba abb abd abo abr abu abv ad- ada adb add ado adr adu adv aoa aob aod aoo aor aou aov ar- ara arb ard aro arr aru arv au- aua aub aud auo aur auv av- ava avb avd avo avr avu b-u baa bab bad bao bar bau bav bba bbb bbd bbo bbr bbu bda bdb bdd bdo bdr bdu bdv boa bob bod boo bor bou bov bra brb brd bro brr bru brv bua bub bud buo bur buu bva bvb bvd bvo bvr bvu bvv daa dab dad dao dar dau dav dba dbb dbd dbo dbr dbu dbv dda ddb ddd ddo ddr ddu doa dob dod doo dor dou dov dra drb drd dro drr dru drv dua dub dud duo dur duv dva dvb dvd dvr dvu oaa oab oad oao oar oau oav ob- oba obb obd obo obr obu obv oda odb odd odo odr odu odv oo- ooa oob ood ooo oor oov or- ora orb ord oro orr oru orv ou- oua oud ouo our ov- ova ovb ovd ovo ovv ra- raa rab rad rao rar rau rav rba rbb rbd rbo rbr rbu rda rdb rdd rdo rdr rdu rdv roa rob rod roo ror rou rov rra rrb rrd rrr rru rua rub rud ruo rur ruu ruv rva rvb rvd rvo rvr rvu rvv ua- uaa uab uad uao uar uau uav uba ubb ubo ubr ubu ubv uda udb udd udo udr udu udv uoa uob uod uoo uor ur- ura urb urd uro urr uru uua uur uuu uva uvb uvo uvu uvv v-a vaa vab vad vao var vau vav vba vbd vbo vbr vbv vdb vdd vdo vdr vdu vdv voa vob vod voo vor vou vov vra vrb vrd vrr vru vur vuv vva vvb vvo vvr vvv

a-do aaaa aaab aaad aaar aaav aaba aabb aabd aada aadu aaoo aara aard aaro aaru aava abaa abab abad abar abau abb- abba abbb abbo abbr abda abdo abdu aboa abob abod aboo abor abou abov abra abro abua abud abva abvd adaa adab adad adao adar adba adda addd addo addr addu adob adod adoo ador adra adro adua adub adur advb aoba aora aorb arab arad arar arau arba arda ardo ardu aroa arob arod aroo aror arr- arra arro arrr arru arua arub arud arva arvo auaa audo aur- aura aurd auro avab avao avar avda avor avou avra avro avur avva avvo baaa baad baar baba babb babo babr babu bada badb badd bado badr badu bar- bara barb bard baro barr baru bau- baud baur bava bavu bbad bbau bbbb bbdd bbdo bd-r bdav boab boad boar boba bobb bobo bobu boda bodb bodo bodu boob bood boor bor- bora bord boro borr boru boua boud bour bova bovo brab brad brao brau brav brda brdo broa brob brod broo bror brou brrr brud bruv buad buar buba bubb bubo bubu buda budb budd budo budu bur- bura burb burd buro burr buru buvd bvdu d-bo daab daad daar daau daba dabb dabo dabu dada dado dadu daou dara darb dard daro darr daru daub daud daur dava dbar dddd ddub doab doar doba dobb dobu dod- doda dodd dodo doob dood door dora dord doro dorr doru doub doud dour draa drab drad drar drau drba drda drob drod drou drra drua drub druu druv duaa duab duad duar dub- duba dubb dubu duda dudd dudo dudu duo- dura duro duru duur duva dvar dvda dvdr dvoa dvor dvra oaau oara obad obba obbo obor obra obro odbo odda oddd odoo odor odou odra odur odva ooaa ooba ooda oooo oora oord orab orad orao orar orav orba orbb orbo orbu orda ordo ordu oro- oror orra orro orub orvr ouad our- oura ouro ouu- ovar ovda ovo- ovod ovoo ovra raab raad raba rabb rabo rabu rada radd rado radr radu raob rara rarb raro raua raub raud rava rbbb rbbr roab road roar rob- roba robb robo robu roda rodd rodo roob rood roor rora roro roru roua roub roud rova rovo rrad rrrr ruad ruba rubb rubu ruda rudd rudo rura rurd ruro ruru ruud ruvu uaru uaua ubar ubba ubbo ubod ubra ubud udaa udad udar udau udoo udra uor- uovo urad urao urau urba urda urdu uro- uroa uroo urra urur urva uuuu uv-a uv-b uvaa uvda uvrd uvvu vaad vaar vada vado vadu vara vard varr varu vaud vava vdub voad voar voda vodo voor vor- vora vord voro voru voud vour vrav vrba vuda vudu vurb vvob vvvv

-aaa- -abad aabaa aabba aabra aarau abaab ababa ababu abada abara abaru abava abbad abbar abbod abbou abbud abbur aboab aboad abobo abood abora abord aboud abovo abrad abrar abrod abrud abuda abura aburr adaba adada adado adaou adara adaro adava addra addur adoar adobo adodb adoor adora adoro adoub adour adrad adrar adroa aduba aouda ar-ab arab- araba arabo arada arado arara araru arava aravu arbab arbar arbor ardab ardod ardor ardra ardua ardud aroab aroad aroar aroba aroor arora arrau arrou arrua aruaa aruba arura aruru aruvu arvad arvar aubad audad audra audru aurad aurar auro- auroa auror aurra aurva avara avard avaro avdur avoda avord avour avouu baard baava babar babau babdo baboo babou babra babur badao badar baddo badod badoo badou badra badur baoro baraa barab barad barao barar barba barbu barda bardo bardu baro- baroa baroo baror barra barro barru barua barud barva baubo baura bauru bavar bavra bdoor bo-bo boada board boaro bobar bobov bobr bodd- bodor bodva booba boora boord booru borau borba borbo borda bordo boro- boroa borod boroo borou borov borra borro borvo bouar bouba bouda boudu boura bourd brada bradu brard braud brava bravo brdda broad brobo broda brodd brodo brood brora broud brova brrar brrrr brud- buada bubba budda buddu budur budva buord buraa burao burda