a-a a-b a-i a-t aaa aab aag aai aan aao aar aat aay ab- aba abb abg abi abn abo abr abt aby ag- aga agb agg agi agn ago agr agt agy ai- aia aib aig aii ain aio air ait aiy an- ana anb ang ani ann ano anr ant any aoa aob aog aoi aon aoo aor aot ar- ara arb arg ari arn aro arr art ary at- ata atb atg ati atn ato atr att ay- aya ayi ayn ayo ayr ayt baa bab bag bai ban bao bar bat bay bba bbb bbg bbi bbn bbo bbr bbt bby bga bgb bgg bgi bgn bgo bgr bgt bi- bia bib big bii bin bio bir bit biy bna bnb bng bni bnn bno bnr bnt boa bob bog boi bon boo bor bot boy bra brb brg bri brn bro brr brt bry bta btb btg bti btn bto btr btt bty by- bya byg byi byn byo byr byt gaa gab gag gai gan gao gar gat gay gba gbg gbi gbn gbo gbr gbt gby gga ggb ggg ggi ggn ggo ggr ggt gia gib gig gii gin gio gir git giy gna gnb gni gnn gno gnr gnt goa gob gog goi gon goo gor got goy gra grb grg gri grn gro grr grt gry gta gtb gtg gti gtn gto gtr gtt gty gy- gya gyb gyn gyo gyr ia- iaa iab iag iai ian iao iar iat iba ibb ibg ibi ibn ibo ibr ibt iby iga igb igg igi ign igo igr igt igy iia iib iii iin iio iir iit in- ina inb ing ini inn ino inr int iny io- ioa iob iog ioi ion ioo ior iot ir- ira irb irg iri irn iro irr irt iry ita itb itg iti itn ito itt ity iya iyo iyr iyt iyy n-i naa nab nag nai nan nao nar nat nay nba nbb nbg nbi nbn nbo nbr nbt nga ngb ngg ngi ngn ngo ngt nia nib nig nii nin nio nir nit nna nnb nng nni nnn nno nnt no- noa nob nog noi non noo nor not noy nra nrb nrg nri nrn nro nrr nrt nry nta ntb ntg nti ntn nto ntr ntt nya nyg nyn nyo nyt nyy o-i oaa oab oag oai oan oao oar oat ob- oba obb obg obi obn obo obr obt oby oga ogg ogi ogn ogo ogt ogy oia oib oii oin oio oir oit on- ona onb ong oni onn ono onr ont ony oo- ooa oob oog ooi oon ooo oor oot or- ora orb org ori orn oro orr ort ory ot- ota otb otg oti otn oto otr ott oya oyi oyo ra- raa rab rag rai ran rao rar rat ray rba rbb rbg rbi rbn rbo rbr rbt rga rgb rgg rgi rgn rgo rgr rgt ria rib rig rii rin rio rir rit riy rna rnb rng rni rnn rno rnr rnt rny roa rob rog roi ron roo ror rot roy rra rrb rrg rri rrn rrr rrt rta rtb rtg rti rtn rto rtr rtt rty ry- rya ryg ryn ryo ryr ryy taa tab tag tai tan tao tar tat tay tba tbb tbg tbi tbn tbo tbr tbt tga tgb tgg tgi tgn tgo tgr tgt tgy tia tib tig tii tin tio tir tit tiy tna tnb tng tni tnn tno tnr tnt to- toa tob tog toi ton too tor tot toy tra trb trg tri trn tro trr trt try tta ttb ttg tti ttn tto ttr ttt tty tya tyg tyn tyo tyr tyt yaa yab yag yai yan yao yar yat yay ybg ybi ybr yby yga ygo yig yii yin yio yir yit yna yng ynn yny yob yog yoi yon yoo yor yot yoy yra yrg yrn yro yrt yta ytn yto ytr ytt yyb yyg yyt yyy