a-a a-b a-i a-t aaa aab aai aao aar aas aat aau ab- aba abb abi abo abr abs abt abu ai- aia aib aii aio air ais ait aiu aoa aob aoi aoo aor aos aot aou ar- ara arb ari aro arr ars art aru as- asa asb asi aso asr ass ast asu at- ata atb ati ato atr ats att atu au- aua aub aui auo aur aus aut b-u baa bab bai bao bar bas bat bau bba bbb bbi bbo bbr bbs bbt bbu bi- bia bib bii bio bir bis bit biu boa bob boi boo bor bos bot bou bra brb bri bro brr brs brt bru bsa bsb bsi bso bsr bss bst bsu bta btb bti bto btr bts btt btu bua bub bui buo bur bus but buu ia- iaa iab iai iao iar ias iat iau iba ibb ibi ibo ibr ibs ibt ibu iia iib iii iio iir iis iit iiu io- ioa iob ioi ioo ior ios iot iou ir- ira irb iri iro irr irs irt iru is- isa isb isi iso isr iss ist isu ita itb iti ito its itt itu iu- iua iub iui iur ius iut o-i oaa oab oai oao oar oas oat oau ob- oba obb obi obo obr obs obt obu oia oib oii oio oir ois oit oiu oo- ooa oob ooi ooo oor oos oot or- ora orb ori oro orr ors ort oru os- osa osb osi oso osr oss ost osu ot- ota otb oti oto otr ots ott otu ou- oua oui ouo our ous out ra- raa rab rai rao rar ras rat rau rba rbb rbi rbo rbr rbs rbt rbu ria rib rii rio rir ris rit roa rob roi roo ror ros rot rou rra rrb rri rrr rrs rrt rru rsa rsb rsi rso rsr rss rst rsu rta rtb rti rto rtr rts rtt rtu rua rub rui ruo rur rus rut ruu saa sab sai sao sar sas sat sau sba sbb sbi sbo sbr sbs sbt sbu sia sib sii sio sir sis sit siu soa sob soi soo sor sos sot sou sr- sra srb sri sro srr srs srt ss- ssa ssb ssi sso ssr sss sst ssu sta stb sti sto str sts stt stu sua sub sui suo sur sus sut suu taa tab tai tao tar tas tat tau tba tbb tbi tbo tbr tbs tbt tbu tia tib tii tio tir tis tit tiu to- toa tob toi too tor tos tot tou tra trb tri tro trr trs trt tru tsa tsb tsi tso tsr tss tst tsu tta ttb tti tto ttr tts ttt ttu tua tub tui tuo tur tus tut tuu ua- uaa uab uai uao uar uas uat uau uba ubb ubi ubo ubr ubs ubt ubu uia uib uii uio uir uis uit uiu uoa uob uoo uor uos uot ur- ura urb uri uro urr urs urt uru usa usb usi uso usr uss ust usu uta utb uti uto utr uts utt utu uua uur uus uut uuu

-ous a-ii aaaa aaab aaai aaar aaas aaba aabb aabi aabt aaib aaii aais aaoo aara aari aaro aars aart aaru aasa aasi aass aast aasu aata aatt aaus abaa abab abai abar abas abat abau abb- abba abbb abbi abbo abbr abbs abbt abia abib abir abis abit abiu aboa abob aboo abor abos abot abou abra abri abro abrs abs- absa absi abss absu abta abts abtu abua abus abut aiai aias aiba aibo aiia aiib aiir aioi aira airi airo airs airt aisa aisb aisi aiso aisr aist aita aiti aitr aits aitt aitu aiui aoba aora aorb aors aort aoss aous aout arab arai arar aras arat arau arba arbi arbs aria arib arii ario aris arit aroa arob aroi aroo aror aros arr- arra arri arro arrr arrs arrt arru ars- arsa arsi arso arst arsu arta arti arto artr arts arua arub arui arut asaa asab asai asao asar asas asat asau asba asbo asbu asia asii asio asir asis asit asob asoi asor asos asot asou asra asro asrs asru assa assi asso assr asss asst assu asta astb asti asto astr asts asub asui asur asus at-t ataa atab atai atar atas atat atbs atia atis atit atiu atob atoi ator atos atot atra atri atro atru atsb atsi atst atta atti atto attr atts attu atua atub atur atus auaa auis aur- aura auri auro ausa aust ausu aut- auto auts ba-i baaa baar baas baat baba babb babi babo babr babs babu baia baib baio bair bais bait baos bar- bara barb bari baro barr bars bart baru basa basi baso bass bast basu bata bati bato bats batt batu bau- baur bbas bbau bbbb bbbs biao biar bias biat biba bibb bibi bibo bibs biis bio- bioi bios biot biou bira birb biri biro birr birs birt biru bis- bisa biso biss bist bisu bita bito bits bitt bitu boab boai boar boas boat boba bobb bobi bobo bobs bobu boi- boii bois boit boiu boob boor boos boot bor- bora bori boro borr bors bort boru bosa bosi boso boss bost bosu bota botb boti boto bots bott boua bour bous bout brab brai brao bras brat brau bria brio bris brit broa brob broo bror bros brot brou brrr brrs brsb brsr brst brus brut bsaa bsas bsat bsos bsra bsts btaa btob btor btrt btss bttb btus buar buat buba bubb bubi bubo bubs bubu buir buis buit buiu bur- bura burb buri buro burr burs burt buru busa busi buss bust busu but- buta buti buto buts butt buus iaaa iaai iaas iaat iaba iaia iais iara iars iart iaru iasa iasi iaso iasr iata iati ibar ibas ibat ibia ibis ibos ibot ibra ibri ibro ibsa ibss ibtb ibts ibus iias iiii iiio iiis iiit iioi iioo