a-a a-b a-i aaa aab aai aan aao aar aas aau aay ab- aba abb abi abn abo abr abs abu aby ai- aia aib aii ain aio air ais aiu aiy an- ana anb ani ann ano anr ans anu any aoa aob aoi aon aoo aor aos aou ar- ara arb ari arn aro arr ars aru ary as- asa asb asi asn aso asr ass asu asy au- aua aub aui aun auo aur aus ay- aya ayi ayn ayo ayr ays ayu b-u baa bab bai ban bao bar bas bau bay bba bbb bbi bbn bbo bbr bbs bbu bby bi- bia bib bii bin bio bir bis biu biy bna bnb bni bnn bno bnr bns bnu boa bob boi bon boo bor bos bou boy bra brb bri brn bro brr brs bru bry bsa bsb bsi bsn bso bsr bss bsu bsy bua bub bui bun buo bur bus buu buy by- bya byi byn byo byr bys byu ia- iaa iab iai ian iao iar ias iau iba ibb ibi ibn ibo ibr ibs ibu iby iia iib iii iin iio iir iis iiu in- ina inb ini inn ino inr ins inu iny io- ioa iob ioi ion ioo ior ios iou ir- ira irb iri irn iro irr irs iru iry is- isa isb isi isn iso isr iss isu isy iu- iua iub iui iur ius iya iyo iyr iys iyy n-i naa nab nai nan nao nar nas nau nay nba nbb nbi nbn nbo nbr nbs nbu nia nib nii nin nio nir nis niu nna nnb nni nnn nno nns nnu no- noa nob noi non noo nor nos nou noy nra nrb nri nrn nro nrr nrs nru nry nsa nsb nsi nsn nso nsr nss nsu nsy nua nub nui nun nuo nur nus nuu nuy nya nyn nyo nys nyu nyy o-i oaa oab oai oan oao oar oas oau ob- oba obb obi obn obo obr obs obu oby oia oib oii oin oio oir ois oiu on- ona onb oni onn ono onr ons onu ony oo- ooa oob ooi oon ooo oor oos or- ora orb ori orn oro orr ors oru ory os- osa osb osi osn oso osr oss osu ou- oua oui oun ouo our ous oya oyi oyo oys ra- raa rab rai ran rao rar ras rau ray rba rbb rbi rbn rbo rbr rbs rbu ria rib rii rin rio rir ris riy rna rnb rni rnn rno rnr rns rnu rny roa rob roi ron roo ror ros rou roy rra rrb rri rrn rrr rrs rru rsa rsb rsi rsn rso rsr rss rsu rua rub rui run ruo rur rus ruu ruy ry- rya ryn ryo ryr rys ryu ryy saa sab sai san sao sar sas sau say sba sbb sbi sbn sbo sbr sbs sbu sby sia sib sii sin sio sir sis siu sna snb sni snn sno snr sns snu sny soa sob soi son soo sor sos sou soy sr- sra srb sri srn sro srr srs sry ss- ssa ssb ssi ssn sso ssr sss ssu sua sub sui sun suo sur sus suu suy sy- sya syb syi syn syr sys syu ua- uaa uab uai uan uao uar uas uau uay uba ubb ubi ubn ubo ubr ubs ubu uby uia uib uii uin uio uir uis uiu un- una unb uni unn uno unr uns unu uny uoa uob uon uoo uor uos ur- ura urb uri urn uro urr urs uru ury usa usb usi usn uso usr uss usu uua uun uur uus uuu uyi uyo uys uyu yaa yab yai yan yao yar yas yau yay ybi ybr ybs yby yii yin yio yir yis yna ynn yns ynu yny yob yoi yon yoo yor yos you yoy yra yrn yro yrs yru ysa ysb ysi yso ysr yss ysu ysy yua yui yun yuo yur yus yuu yuy yyb yys yyu yyy