a-a a-b a-i aaa aab aag aai aan aar aas aay ab- aba abb abg abi abn abr abs aby ag- aga agb agg agi agn agr ags agy ai- aia aib aig aii ain air ais aiy an- ana anb ang ani ann anr ans any ar- ara arb arg ari arn arr ars ary as- asa asb asg asi asn asr ass asy ay- aya ayi ayn ayr ays baa bab bag bai ban bar bas bay bba bbb bbg bbi bbn bbr bbs bby bga bgb bgg bgi bgn bgr bgs bi- bia bib big bii bin bir bis biy bna bnb bng bni bnn bnr bns bra brb brg bri brn brr brs bry bsa bsb bsg bsi bsn bsr bss bsy by- bya byg byi byn byr bys gaa gab gag gai gan gar gas gay gba gbg gbi gbn gbr gbs gby gga ggb ggg ggi ggn ggr ggs gia gib gig gii gin gir gis giy gna gnb gni gnn gnr gns gra grb grg gri grn grr grs gry gsa gsb gsg gsi gsn gsr gss gy- gya gyb gyn gyr gys ia- iaa iab iag iai ian iar ias iba ibb ibg ibi ibn ibr ibs iby iga igb igg igi ign igr igs igy iia iib iii iin iir iis in- ina inb ing ini inn inr ins iny ir- ira irb irg iri irn irr irs iry is- isa isb isg isi isn isr iss isy iya iyr iys iyy n-i naa nab nag nai nan nar nas nay nba nbb nbg nbi nbn nbr nbs nga ngb ngg ngi ngn ngs nia nib nig nii nin nir nis nna nnb nng nni nnn nns nra nrb nrg nri nrn nrr nrs nry nsa nsb nsg nsi nsn nsr nss nsy nya nyg nyn nys nyy ra- raa rab rag rai ran rar ras ray rba rbb rbg rbi rbn rbr rbs rga rgb rgg rgi rgn rgr rgs ria rib rig rii rin rir ris riy rna rnb rng rni rnn rnr rns rny rra rrb rrg rri rrn rrr rrs rsa rsb rsg rsi rsn rsr rss ry- rya ryg ryn ryr rys ryy saa sab sag sai san sar sas say sba sbb sbg sbi sbn sbr sbs sby sga sgb sgg sgi sgn sgr sgs sia sib sig sii sin sir sis sna snb sng sni snn snr sns sny sr- sra srb srg sri srn srr srs sry ss- ssa ssb ssg ssi ssn ssr sss sy- sya syb syg syi syn syr sys yaa yab yag yai yan yar yas yay ybg ybi ybr ybs yby yga yig yii yin yir yis yna yng ynn yns yny yra yrg yrn yrs ysa ysb ysg ysi ysr yss ysy yyb yyg yys yyy