a-a a-b a-i aaa aab aai aao aar aas aau ab- aba abb abi abo abr abs abu ai- aia aib aii aio air ais aiu aoa aob aoi aoo aor aos aou ar- ara arb ari aro arr ars aru as- asa asb asi aso asr ass asu au- aua aub aui auo aur aus b-u baa bab bai bao bar bas bau bba bbb bbi bbo bbr bbs bbu bi- bia bib bii bio bir bis biu boa bob boi boo bor bos bou bra brb bri bro brr brs bru bsa bsb bsi bso bsr bss bsu bua bub bui buo bur bus buu ia- iaa iab iai iao iar ias iau iba ibb ibi ibo ibr ibs ibu iia iib iii iio iir iis iiu io- ioa iob ioi ioo ior ios iou ir- ira irb iri iro irr irs iru is- isa isb isi iso isr iss isu iu- iua iub iui iur ius o-i oaa oab oai oao oar oas oau ob- oba obb obi obo obr obs obu oia oib oii oio oir ois oiu oo- ooa oob ooi ooo oor oos or- ora orb ori oro orr ors oru os- osa osb osi oso osr oss osu ou- oua oui ouo our ous ra- raa rab rai rao rar ras rau rba rbb rbi rbo rbr rbs rbu ria rib rii rio rir ris roa rob roi roo ror ros rou rra rrb rri rrr rrs rru rsa rsb rsi rso rsr rss rsu rua rub rui ruo rur rus ruu saa sab sai sao sar sas sau sba sbb sbi sbo sbr sbs sbu sia sib sii sio sir sis siu soa sob soi soo sor sos sou sr- sra srb sri sro srr srs ss- ssa ssb ssi sso ssr sss ssu sua sub sui suo sur sus suu ua- uaa uab uai uao uar uas uau uba ubb ubi ubo ubr ubs ubu uia uib uii uio uir uis uiu uoa uob uoo uor uos ur- ura urb uri uro urr urs uru usa usb usi uso usr uss usu uua uur uus uuu

-ous a-ii aaaa aaab aaai aaar aaas aaba aabb aabi aaib aaii aais aaoo aara aari aaro aars aaru aasa aasi aass aasu aaus abaa abab abai abar abas abau abb- abba abbb abbi abbo abbr abbs abia abib abir abis abiu aboa abob aboo abor abos abou abra abri abro abrs abs- absa absi abss absu abua abus aiai aias aiba aibo aiia aiib aiir aioi aira airi airo airs aisa aisb aisi aiso aisr aiui aoba aora aorb aors aoss aous arab arai arar aras arau arba arbi arbs aria arib arii ario aris aroa arob aroi aroo aror aros arr- arra arri arro arrr arrs arru ars- arsa arsi arso arsu arua arub arui asaa asab asai asao asar asas asau asba asbo asbu asia asii asio asir asis asob asoi asor asos asou asra asro asrs asru assa assi asso assr asss assu asub asui asur asus auaa auis aur- aura auri auro ausa ausu ba-i baaa baar baas baba babb babi babo babr babs babu baia baib baio bair bais baos bar- bara barb bari baro barr bars baru basa basi baso bass basu bau- baur bbas bbau bbbb bbbs biao biar bias biba bibb bibi bibo bibs biis bio- bioi bios biou bira birb biri biro birr birs biru bis- bisa biso biss bisu boab boai boar boas boba bobb bobi bobo bobs bobu boi- boii bois boiu boob boor boos bor- bora bori boro borr bors boru bosa bosi boso boss bosu boua bour bous brab brai brao bras brau bria brio bris broa brob broo bror bros brou brrr brrs brsb brsr brus bsaa bsas bsos bsra buar buba bubb bubi bubo bubs bubu buir buis buiu bur- bura burb buri buro burr burs buru busa busi buss busu buus iaaa iaai iaas iaba iaia iais iara iars iaru iasa iasi iaso iasr ibar ibas ibia ibis ibos ibra ibri ibro ibsa ibss ibus iias iiii iiio iiis iioi iioo iios iira iirs iisi iisr iisu ioba iobi ioii ioio iooi iooo ioos iora iori iors ioso iosu ious irai irao irar iras iri- iria irio iris irob irra irri irrs irsa irus is-a isai isao isar isas isba isia isis iso- isor isos isra isri issa issi isso issr isss issu isua isus iuiu iura iuss oaau oais oara oars oasi oass obai obas obba obbo obia obis oboi obor obos obra obri obro obsr obss obus oiba oiii oios oira oisu ooaa ooba oobi ooia oooo ooos oora oosa oosi oous orab orai orao orar oras orba orbb orbi orbo orbs orbu ori- oria orio oris oro- oror oros orra orri orro orrs orsa orsi orso orsu orub orus osai osar osas osba osia osii osis osoi osoo osor osos osro ossa ossb ossi osso ossu oubs ouii ouir ouis our- oura ouro ours ousa ouu- raab raas raba rabb rabi rabo rabs rabu raia raii rair rais raiu raob raos rara rarb rari raro rars rasa rasi raso rass rasu raua raub raus rbbb rbbr rbbs rbis rbss riaa riab riai rias riau rib- riba ribo ribs ribu riia riis rios riou riri rirs risa risi riso riss risu rius roab roar roas rob- roba robb robi robo robs robu roia roio roir rois roiu roob rooi roor roos rora rori roro roru rosa rosi roso ross roua roub rous rras rrrr rsaa rsai rsbi rsis rsos rssa rsua ruas ruba rubb rubi rubs rubu ruis rura ruri ruro rurs ruru rusa rusi ruso russ rusu s-ib s-ii s-os saab saar saas saba sabb sabi sabo sabr sabs sabu saia sair sais saoi saor saos saou sara sari saro sarr sars saru sasa sasi saso sass saua saur saus sbaa sbai sbar sbas sbbs sbia sbor sbsa sbsi sbus siaa siab siai sias siau siba sibi sibo sibs sibu sior sios siou sira siri