a-a a-b a-i a-t aaa aab aad aag aai aas aat aay ab- aba abb abd abg abi abs abt aby ad- ada adb add adg adi ads adt ady ag- aga agb agd agg agi ags agt agy ai- aia aib aid aig aii ais ait aiy as- asa asb asd asg asi ass ast asy at- ata atb atd atg ati ats att ay- aya ayd ayi ays ayt baa bab bad bag bai bas bat bay bba bbb bbd bbg bbi bbs bbt bby bda bdb bdd bdg bdi bds bdt bdy bga bgb bgd bgg bgi bgs bgt bi- bia bib bid big bii bis bit biy bsa bsb bsd bsg bsi bss bst bsy bta btb btd btg bti bts btt bty by- bya byd byg byi bys byt daa dab dad dag dai das dat day dba dbb dbd dbg dbi dbs dbt dby dda ddb ddd ddg ddi dds ddt ddy dga dgd dgg dgi dgs dgt di- dia dib did dig dii dis dit diy dsa dsb dsd dsg dsi dss dst dsy dta dtb dtd dtg dti dts dtt dty dy- dya dyb dyd dys dyy g-d gaa gab gad gag gai gas gat gay gba gbd gbg gbi gbs gbt gby gda gdb gdd gdi gds gdt gga ggb ggd ggg ggi ggs ggt gia gib gid gig gii gis git giy gsa gsb gsd gsg gsi gss gst gta gtb gtd gtg gti gts gtt gty gy- gya gyb gyd gys i-d ia- iaa iab iad iag iai ias iat iba ibb ibd ibg ibi ibs ibt iby ida idb idd idg idi ids idt idy iga igb igd igg igi igs igt igy iia iib iid iii iis iit is- isa isb isd isg isi iss ist isy ita itb itd itg iti its itt ity iya iys iyt iyy saa sab sad sag sai sas sat say sba sbb sbd sbg sbi sbs sbt sby sda sdb sdd sdg sdi sds sdt sdy sga sgb sgd sgg sgi sgs sgt sia sib sid sig sii sis sit ss- ssa ssb ssd ssg ssi sss sst sta stb std stg sti sts stt sty sy- sya syb syd syg syi sys syt taa tab tad tag tai tas tat tay tba tbb tbd tbg tbi tbs tbt tda tdb tdd tdg tdi tds tdt tdy tga tgb tgg tgi tgs tgt tgy tia tib tid tig tii tis tit tiy tsa tsb tsd tsg tsi tss tst tsy tta ttb ttd ttg tti tts ttt tty tya tyd tyg tys tyt yaa yab yad yag yai yas yat yay ybg ybi ybs yby yda ydg yds ydt ydy yga yid yig yii yis yit ysa ysb ysg ysi yss yst ysy yta ytd yts ytt yyb yyg yys yyt yyy