a-a a-b a-i a-t aaa aab aai aan aao aar aat aau aay ab- aba abb abi abn abo abr abt abu aby ai- aia aib aii ain aio air ait aiu aiy an- ana anb ani ann ano anr ant anu any aoa aob aoi aon aoo aor aot aou ar- ara arb ari arn aro arr art aru ary at- ata atb ati atn ato atr att atu au- aua aub aui aun auo aur aut ay- aya ayi ayn ayo ayr ayt ayu b-u baa bab bai ban bao bar bat bau bay bba bbb bbi bbn bbo bbr bbt bbu bby bi- bia bib bii bin bio bir bit biu biy bna bnb bni bnn bno bnr bnt bnu boa bob boi bon boo bor bot bou boy bra brb bri brn bro brr brt bru bry bta btb bti btn bto btr btt btu bty bua bub bui bun buo bur but buu buy by- bya byi byn byo byr byt byu ia- iaa iab iai ian iao iar iat iau iba ibb ibi ibn ibo ibr ibt ibu iby iia iib iii iin iio iir iit iiu in- ina inb ini inn ino inr int inu iny io- ioa iob ioi ion ioo ior iot iou ir- ira irb iri irn iro irr irt iru iry ita itb iti itn ito itt itu ity iu- iua iub iui iur iut iya iyo iyr iyt iyy n-i naa nab nai nan nao nar nat nau nay nba nbb nbi nbn nbo nbr nbt nbu nia nib nii nin nio nir nit niu nna nnb nni nnn nno nnt nnu no- noa nob noi non noo nor not nou noy nra nrb nri nrn nro nrr nrt nru nry nta ntb nti ntn nto ntr ntt ntu nua nub nui nun nuo nur nut nuu nuy nya nyn nyo nyt nyu nyy o-i oaa oab oai oan oao oar oat oau ob- oba obb obi obn obo obr obt obu oby oia oib oii oin oio oir oit oiu on- ona onb oni onn ono onr ont onu ony oo- ooa oob ooi oon ooo oor oot or- ora orb ori orn oro orr ort oru ory ot- ota otb oti otn oto otr ott otu ou- oua oui oun ouo our out oya oyi oyo ra- raa rab rai ran rao rar rat rau ray rba rbb rbi rbn rbo rbr rbt rbu ria rib rii rin rio rir rit riy rna rnb rni rnn rno rnr rnt rnu rny roa rob roi ron roo ror rot rou roy rra rrb rri rrn rrr rrt rru rta rtb rti rtn rto rtr rtt rtu rty rua rub rui run ruo rur rut ruu ruy ry- rya ryn ryo ryr ryu ryy taa tab tai tan tao tar tat tau tay tba tbb tbi tbn tbo tbr tbt tbu tia tib tii tin tio tir tit tiu tiy tna tnb tni tnn tno tnr tnt to- toa tob toi ton too tor tot tou toy tra trb tri trn tro trr trt tru try tta ttb tti ttn tto ttr ttt ttu tty tua tub tui tun tuo tur tut tuu tuy tya tyn tyo tyr tyt ua- uaa uab uai uan uao uar uat uau uay uba ubb ubi ubn ubo ubr ubt ubu uby uia uib uii uin uio uir uit uiu un- una unb uni unn uno unr unt unu uny uoa uob uon uoo uor uot ur- ura urb uri urn uro urr urt uru ury uta utb uti utn uto utr utt utu uty uua uun uur uut uuu uyi uyo uyu yaa yab yai yan yao yar yat yau yay ybi ybr yby yii yin yio yir yit yna ynn ynu yny yob yoi yon yoo yor yot you yoy yra yrn yro yrt yru yta ytn yto ytr ytt ytu yua yui yun yuo yur yut yuu yuy yyb yyt yyu yyy