a-a a-b a-i aaa aab aai aao aar aas aau aav ab- aba abb abi abo abr abs abu abv ai- aia aib aii aio air ais aiu aiv aoa aob aoi aoo aor aos aou aov ar- ara arb ari aro arr ars aru arv as- asa asb asi aso asr ass asu asv au- aua aub aui auo aur aus auv av- ava avb avi avo avr avs avu b-u baa bab bai bao bar bas bau bav bba bbb bbi bbo bbr bbs bbu bi- bia bib bii bio bir bis biu biv boa bob boi boo bor bos bou bov bra brb bri bro brr brs bru brv bsa bsb bsi bso bsr bss bsu bsv bua bub bui buo bur bus buu bva bvb bvi bvo bvr bvs bvu bvv i-v ia- iaa iab iai iao iar ias iau iav iba ibb ibi ibo ibr ibs ibu ibv iia iib iii iio iir iis iiu io- ioa iob ioi ioo ior ios iou iov ir- ira irb iri iro irr irs iru irv is- isa isb isi iso isr iss isu isv iu- iua iub iui iur ius iva ivb ivi ivo ivr ivs ivu ivv o-i oaa oab oai oao oar oas oau oav ob- oba obb obi obo obr obs obu obv oia oib oii oio oir ois oiu oiv oo- ooa oob ooi ooo oor oos oov or- ora orb ori oro orr ors oru orv os- osa osb osi oso osr oss osu osv ou- oua oui ouo our ous ov- ova ovb ovi ovo ovs ovv ra- raa rab rai rao rar ras rau rav rba rbb rbi rbo rbr rbs rbu ria rib rii rio rir ris riv roa rob roi roo ror ros rou rov rra rrb rri rrr rrs rru rsa rsb rsi rso rsr rss rsu rsv rua rub rui ruo rur rus ruu ruv rva rvb rvi rvo rvr rvs rvu rvv saa sab sai sao sar sas sau sav sba sbb sbi sbo sbr sbs sbu sbv sia sib sii sio sir sis siu siv soa sob soi soo sor sos sou sov sr- sra srb sri sro srr srs srv ss- ssa ssb ssi sso ssr sss ssu ssv sua sub sui suo sur sus suu suv sva svb svi svo svr svs svu svv ua- uaa uab uai uao uar uas uau uav uba ubb ubi ubo ubr ubs ubu ubv 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 usv uua uur uus uuu uva uvb uvo uvs uvu uvv v-a vaa vab vai vao var vas vau vav vba vbi vbo vbr vbs vbv vi- via vib vii vio vir vis viu viv voa vob voi voo vor vos vou vov vra vrb vri vrr vrs vru vsa vsb vsi vso vsr vss vsu vsv vur vus vuv vva vvb vvi vvo vvr vvs vvv

-ous a-ii a-iv aaaa aaab aaai aaar aaas aaav aaba aabb aabi aaib aaii aais aaoo aara aari aaro aars aaru aasa aasi aass aasu aaus aava abaa abab abai abar abas abau abb- abba abbb abbi abbo abbr abbs abia abib abir abis abiu aboa abob aboo abor abos abou abov abra abri abro abrs abs- absa absi abss absu abua abus abva aiai aias aiba aibo aiia aiib aiir aioi aira airi airo airs aisa aisb aisi aiso aisr aiui aiva 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 arva arvi arvo 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 asva asvs auaa auis aur- aura auri auro ausa ausu auvs avab avao avar avas avia avio avis aviv avor avos avou avra avri avro avui avur avus avva avvo 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 bava bavi bavu 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 bivi 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 bova bovi bovo brab brai brao bras brau brav bria brio bris broa brob broo bror bros brou brrr brrs brsb brsr brus bruv brvi 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 iava 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 irov irra irri irrs irsa irus irvs 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 ivai ivao ivar ivbv ivor ivrs oaau oais oara oars oasi oass oavs obai obas obba obbo obia obis oboi obor obos obra obri obro obsr obss obus obvi obvs oiav oiba oiii oios oira oisu ooaa ooba oobi ooia oooo ooos oora oosa oosi oous orab orai orao orar oras orav orba orbb orbi orbo orbs orbu ori- oria orio oris oro- oror oros orra orri orro