a-a a-b a-i a-t aaa aab aag aai aan aas aat aay ab- aba abb abg abi abn abs abt aby ag- aga agb agg agi agn ags agt agy ai- aia aib aig aii ain ais ait aiy an- ana anb ang ani ann ans ant any as- asa asb asg asi asn ass ast asy at- ata atb atg ati atn ats att ay- aya ayi ayn ays ayt baa bab bag bai ban bas bat bay bba bbb bbg bbi bbn bbs bbt bby bga bgb bgg bgi bgn bgs bgt bi- bia bib big bii bin bis bit biy bna bnb bng bni bnn bns bnt bsa bsb bsg bsi bsn bss bst bsy bta btb btg bti btn bts btt bty by- bya byg byi byn bys byt gaa gab gag gai gan gas gat gay gba gbg gbi gbn gbs gbt gby gga ggb ggg ggi ggn ggs ggt gia gib gig gii gin gis git giy gna gnb gni gnn gns gnt gsa gsb gsg gsi gsn gss gst gta gtb gtg gti gtn gts gtt gty gy- gya gyb gyn gys ia- iaa iab iag iai ian ias iat iba ibb ibg ibi ibn ibs ibt iby iga igb igg igi ign igs igt igy iia iib iii iin iis iit in- ina inb ing ini inn ins int iny is- isa isb isg isi isn iss ist isy ita itb itg iti itn its itt ity iya iys iyt iyy n-i naa nab nag nai nan nas nat nay nba nbb nbg nbi nbn nbs nbt nga ngb ngg ngi ngn ngs ngt nia nib nig nii nin nis nit nna nnb nng nni nnn nns nnt nsa nsb nsg nsi nsn nss nst nsy nta ntb ntg nti ntn nts ntt nya nyg nyn nys nyt nyy saa sab sag sai san sas sat say sba sbb sbg sbi sbn sbs sbt sby sga sgb sgg sgi sgn sgs sgt sia sib sig sii sin sis sit sna snb sng sni snn sns snt sny ss- ssa ssb ssg ssi ssn sss sst sta stb stg sti stn sts stt sty sy- sya syb syg syi syn sys syt taa tab tag tai tan tas tat tay tba tbb tbg tbi tbn tbs tbt tga tgb tgg tgi tgn tgs tgt tgy tia tib tig tii tin tis tit tiy tna tnb tng tni tnn tns tnt tsa tsb tsg tsi tsn tss tst tsy tta ttb ttg tti ttn tts ttt tty tya tyg tyn tys tyt yaa yab yag yai yan yas yat yay ybg ybi ybs yby yga yig yii yin yis yit yna yng ynn yns yny ysa ysb ysg ysi yss yst ysy yta ytn yts ytt yyb yyg yys yyt yyy