a-a a-b aaa aab aad aao aar aas aau ab- aba abb abd abo abr abs abu ad- ada adb add ado adr ads adu aoa aob aod aoo aor aos aou ar- ara arb ard aro arr ars aru as- asa asb asd aso asr ass asu au- aua aub aud auo aur aus b-u baa bab bad bao bar bas bau bba bbb bbd bbo bbr bbs bbu bda bdb bdd bdo bdr bds bdu boa bob bod boo bor bos bou bra brb brd bro brr brs bru bsa bsb bsd bso bsr bss bsu bua bub bud buo bur bus buu daa dab dad dao dar das dau dba dbb dbd dbo dbr dbs dbu dda ddb ddd ddo ddr dds ddu doa dob dod doo dor dos dou dra drb drd dro drr drs dru dsa dsb dsd dso dsr dss dsu dua dub dud duo dur dus oaa oab oad oao oar oas oau ob- oba obb obd obo obr obs obu oda odb odd odo odr ods odu oo- ooa oob ood ooo oor oos or- ora orb ord oro orr ors oru os- osa osb osd oso osr oss osu ou- oua oud ouo our ous ra- raa rab rad rao rar ras rau rba rbb rbd rbo rbr rbs rbu rda rdb rdd rdo rdr rds rdu roa rob rod roo ror ros rou rra rrb rrd rrr rrs rru rsa rsb rsd rso rsr rss rsu rua rub rud ruo rur rus ruu saa sab sad sao sar sas sau sba sbb sbd sbo sbr sbs sbu sda sdb sdd sdo sdr sds sdu soa sob sod soo sor sos sou sr- sra srb srd sro srr srs ss- ssa ssb ssd sso ssr sss ssu sua sub sud suo sur sus suu ua- uaa uab uad uao uar uas uau uba ubb ubo ubr ubs ubu uda udb udd udo udr uds udu uoa uob uod uoo uor uos ur- ura urb urd uro urr urs uru usa usb usd uso usr uss usu uua uur uus uuu

-ous a-do aaaa aaab aaad aaar aaas aaba aabb aabd aada aads aadu aaoo aara aard aaro aars aaru aasa aasd aass aasu aaus abaa abab abad abar abas abau abb- abba abbb abbo abbr abbs abda abdo abdu aboa abob abod aboo abor abos abou abra abro abrs abs- absa absd abss absu abua abud abus adaa adab adad adao adar adas adba adda addd addo addr adds addu adob adod adoo ador ados adra adro adrs adsa adso adsr adss adua adub adur aoba aora aorb aors aosd aoss aous arab arad arar aras arau arba arbs arda ardo ards ardu aroa arob arod aroo aror aros arr- arra arro arrr arrs arru ars- arsa arsd arso arsu arua arub arud asaa asab asad asao asar asas asau asba asbo asbu asda asdo asds asob asod asor asos asou asra asro asrs asru assa assd asso assr asss assu asub asud asur asus auaa audo aur- aura aurd auro ausa ausd ausu baaa baad baar baas baba babb babo babr babs babu bada badb badd bado badr bads badu baos bar- bara barb bard baro barr bars baru basa baso bass basu bau- baud baur bbad bbas bbau bbbb bbbs bbdd bbdo bd-r bdos bdsd boab boad boar boas boba bobb bobo bobs bobu boda bodb bodo bods bodu boob bood boor boos bor- bora bord boro borr bors boru bosa boso boss bosu boua boud bour bous brab brad brao bras brau brda brdo brds broa brob brod broo bror bros brou brrr brrs brsb brsr brud brus bsaa bsas bsbd bsod bsos bsra bsrd bssd buad buar buba bubb bubo bubs bubu buda budb budd budo buds budu bur- bura burb burd buro burr burs buru busa buss busu buus d-bo daab daad daar daas daau daba dabb dabo dabs dabu dada dado dads dadu daos daou dara darb dard daro darr dars daru dasa dasb dasd dass daub daud daur daus dbar dbas dbos dbrs dbsa dbss dbus dddd ddss ddub doab doar doas doba dobb dobs dobu dod- doda dodd dodo dods doob dood door doos dora dord doro dorr dors doru dosa doso doss doub doud dour dous draa drab drad drar dras drau drba drda drob drod drou drra drrs drsa drua drub drus druu dsba dsda dsdr dsoa dsos dsrr dssa duaa duab duad duar duas dub- duba dubb dubs dubu duda dudd dudo duds dudu duo- duos dura duro duru dusa duur oaau oara oars oass obad obas obba obbo obor obos obra obro obsd obsr obss obus odas odbo odda oddd odds odoo odor odos odou odra odso odur odus ooaa ooba ooda oooo ooos oora oord oosa oous orab orad orao orar oras orba orbb orbo orbs orbu orda ordo ords ordu oro- oror oros orra orro orrs orsa orso orsu orub orus osar osas osba osoo osor osos osrd osro ossa ossb ossd osso ossu ouad oubs ouds our- oura ouro ours ousa ousd ouu- raab raad raas raba rabb rabo rabs rabu rada radd rado radr rads radu raob raos rara rarb raro rars rasa rasd raso rass rasu raua raub raud raus rbbb rbbr rbbs rbds rbsd rbss rdas rdos rdso roab road roar roas rob- roba robb robo robs robu roda rodd rodo rods roob rood roor roos rora roro roru rosa roso ross roua roub roud rous rrad rras rrrr rsaa rsdd rsds rsos rssa rsua ruad ruas ruba rubb rubs rubu ruda rudd rudo ruds rura rurd ruro rurs ruru rusa ruso russ rusu ruud s-os saab saad saar saas saba sabb sabo sabr sabs sabu sada sadb sadd sado sadr sads sadu saor saos saou sara sard saro sarr sars saru sasa sasd saso sass saua saud saur saus sbaa sbar sbas sbbs sbds sbor sbsa sbsd sbus sdau sdba sdds sdrs sdss sdsu soad soar soas soba sobo sobr sobs sobu