a-a a-b a-i a-t aaa aab aaf aag aai aan aat aay ab- aba abb abf abg abi abn abt aby af- afa afb aff afg afi afn aft afy ag- aga agb agf agg agi agn agt agy ai- aia aib aif aig aii ain ait aiy an- ana anb anf ang ani ann ant any at- ata atb atf atg ati atn att ay- aya ayf ayi ayn ayt baa bab baf bag bai ban bat bay bba bbb bbf bbg bbi bbn bbt bby bfa bfb bff bfg bfi bfn bft bfy bga bgb bgf bgg bgi bgn bgt bi- bia bib bif big bii bin bit biy bna bnb bnf bng bni bnn bnt bta btb btf btg bti btn btt bty by- bya byf byg byi byn byt faa fab faf fag fai fan fat fay fba fbb fbf fbg fbi fbn fbt ffa fff ffg ffi ffn fft ffy fga fgb fgf fgg fgi fgn fgt fia fib fif fig fii fin fit fna fnb fnf fng fni fnn fnt fta ftb ftf ftg fti ftn ftt fty fy- fya fyb fyi fyn gaa gab gaf gag gai gan gat gay gba gbf gbg gbi gbn gbt gby gfa gfb gff gfi gft gfy gga ggb ggg ggi ggn ggt gia gib gif gig gii gin git giy gna gnb gnf gni gnn gnt gta gtb gtf gtg gti gtn gtt gty gy- gya gyb gyf gyn i-f ia- iaa iab iaf iag iai ian iat iba ibb ibf ibg ibi ibn ibt iby ifa ifb iff ifg ifi ifn ift ify iga igb igf igg igi ign igt igy iia iib iif iii iin iit in- ina inb inf ing ini inn int iny ita itb itf itg iti itn itt ity iya iyt iyy n-i naa nab naf nag nai nan nat nay nba nbb nbf nbg nbi nbn nbt nfa nfb nff nfi nfn nft nga ngb ngf ngg ngi ngn ngt nia nib nif nig nii nin nit nna nnb nnf nng nni nnn nnt nta ntb ntf ntg nti ntn ntt nya nyf nyg nyn nyt nyy taa tab taf tag tai tan tat tay tba tbb tbf tbg tbi tbn tbt tfa tfb tff tfg tfi tfn tft tga tgb tgf tgg tgi tgn tgt tgy tia tib tif tig tii tin tit tiy tna tnb tnf tng tni tnn tnt tta ttb ttf ttg tti ttn ttt tty tya tyf tyg tyn tyt yaa yab yaf yag yai yan yat yay ybf ybg ybi yby yfa yff yft yga yif yig yii yin yit yna yng ynn yny yta ytf ytn ytt yyb yyf yyg yyt yyy