a-a a-b a-c aaa aab aac aao aar aas aau aay ab- aba abb abc abo abr abs abu aby ac- aca acb acc aco acr acs acu acy aoa aob aoc aoo aor aos aou ar- ara arb arc aro arr ars aru ary as- asa asb asc aso asr ass asu asy au- aua aub auc auo aur aus ay- aya ayc ayo ayr ays ayu b-u baa bab bac bao bar bas bau bay bba bbb bbc bbo bbr bbs bbu bby bca bcb bcc bco bcr bcs bcu bcy boa bob boc boo bor bos bou boy bra brb bro brr brs bru bry bsa bsb bsc bso bsr bss bsu bsy bua bub buc buo bur bus buu buy by- bya byc byo byr bys byu c-- caa cab cac cao car cas cau cay cba cbb cbc cbo cbr cbs cbu cby cca ccb ccc cco ccr ccs ccu co- coa cob coc coo cor cos cou coy cra crb crc cro crr crs cru cry csa csb csc cso csr css csu csy cua cub cuc cuo cur cus cuu cuy cya cyb cyc cyo cyr cys oaa oab oac oao oar oas oau ob- oba obb obc obo obr obs obu oby oc- oca ocb occ oco ocr ocs ocu oo- ooa oob ooc ooo oor oos or- ora orb orc oro orr ors oru ory os- osa osb osc oso osr oss osu ou- oua ouc ouo our ous oya oyo oys ra- raa rab rac rao rar ras rau ray rba rbb rbc rbo rbr rbs rbu rca rcb rcc rco rcr rcs rcu roa rob roc roo ror ros rou roy rra rrb rrc rrr rrs rru rsa rsb rsc rso rsr rss rsu rua rub ruc ruo rur rus ruu ruy ry- rya ryc ryo ryr rys ryu ryy saa sab sac sao sar sas sau say sba sbb sbc sbo sbr sbs sbu sby sca scb scc sco scr scs scu soa sob soc soo sor sos sou soy sr- sra srb src sro srr srs sry ss- ssa ssb ssc sso ssr sss ssu sua sub suc suo sur sus suu suy sy- sya syb syc syr sys syu ua- uaa uab uac uao uar uas uau uay uba ubb ubc ubo ubr ubs ubu uby uca ucb ucc uco ucr ucs ucu uoa uob uoc uoo uor uos ur- ura urb urc uro urr urs uru ury usa usb usc uso usr uss usu uua uuc uur uus uuu uyc uyo uys uyu yaa yab yac yao yar yas yau yay ybc ybr ybs yby yca ycc yco ycs ycu ycy yob yoc yoo yor yos you yoy yra yrc yro yrs yru ysa ysb ysc yso ysr yss ysu ysy yua yuo yur yus yuu yuy yyb yyc yys yyu yyy

-ous a-ya a-yo aaaa aaab aaac aaar aaas aaba aabb aabc aaby aaca aacb aacc aaco aacr aacs aacu aacy aaoo aara aarc aaro aars aaru aasa aasc aass aasu aaus abaa abab abac abar abas abau abay abb- abba abbb abbo abbr abbs abby abca abcb abcc abcr abcs aboa abob aboo abor abos abou aboy abra abrc abro abrs abry abs- absa abss absu abua abus abuy abyc abys abyy acaa acab acac acar acas acba acca accc acco accs accu accy acoa acor acos acou acoy acr- acra acrc acro acrr acrs acry acsa acsc acss acu- acuo acur acus aoba aoca aocs aora aorb aors aoss aous arab arac arar aras arau aray arba arbs arby arc- arca arco arcs aroa arob aroo aror aros arr- arra arrc arro arrr arrs arru arry ars- arsa arsc arso arsu arsy arua arub ary- arya arys asaa asab asac asao asar asas asau asay asba asbo asbu asby asc- asca ascb ascc asco ascr asob asoc asor asos asou asra asrc asro asrs asru assa assc asso assr asss assu assy asub asur asus asya auaa auby auca auoy aur- aura auro ausa ausu auyo ay-o ayao ayar ayas ayay ayca ayoo ayos ayou ayra ayry aysu ayub ayur ayya baaa baar baas baba babb babo babr babs babu baby bac- baca bacc baco bacs baos bar- bara barb barc baro barr bars baru bary basa basc baso bass basu bau- baur baya bayo bays bayu bbas bbau bbay bbbb bbbs bboy bbrc bbyo bcaa bcar bcas bcbc bcbs bcca bccc bccs bcor bcos bcra bcrs bcru bcsa bcsc bcss bcuc boab boac boar boas boba bobb bobo bobs bobu boby boca boco bocs bocu boob booc boor boos bor- bora boro borr bors boru bory bosa bosc boso boss bosu boua bour bous bouy boya boyo boys brab brac brao bras brau bray brca brcb broa brob broc broo bror bros brou brrr brrs brsb brsr bruc brus bry- brya bryo bsaa bsac bsas bscs bsos bsra bssc buar buba bubb bubo bubs bubu buca bucc buco bucs bucu buoy bur- bura burb buro burr burs buru bury busa busc buss busu busy buus buyo buys buyu byar byas byoa byob byoc byos bysb byso byss bysy c-bo caaa caab caac caas caba cabo cabs cabu caby cac- caca cacc caco cacr caor caos cara carb carc caro carr cars cary casa casb casc caso casr cass casu cauc cauo caus cayo cayr cays cbac cbar cbbc cbbs cbca cbcc cbcr cbcs cbcu cbry cbsa cbsc cbus ccaa ccab ccac ccar ccas ccba ccbc ccca cccb cccc cccs cccu ccob ccoc ccra ccrc ccrs ccsa ccss ccuc ccus coas coba cobb cobo cobs cobu coby coca coco cocu coob coos cor- cora corb corc coro corr cors cory cosa cosc coso coss cosy coua coub cour cous couy coya coyo coyr coys crab crac crar cras crau cray crbc crbu crca crcc crcr crob croc croo cror croy crsa crss crub crus cry- crya cryb cryo crys csaa csab csac csao csar csas cscb cscc csco cscr cscs csob csor