a-a a-b a-i aaa aab aad aaf aag aai aak aas aay ab- aba abb abd abf abg abi abk abs aby ad- ada adb add adf adg adi adk ads ady af- afa afb afd aff afg afi afk afs afy ag- aga agb agd agf agg agi agk ags agy ai- aia aib aid aif aig aii aik ais aiy aka akb akd akg aki akk aks as- asa asb asd asf asg asi ask ass asy ay- aya ayd ayf ayi ayk ays baa bab bad baf bag bai bak bas bay bba bbb bbd bbf bbg bbi bbk bbs bby bda bdb bdd bdf bdg bdi bdk bds bdy bfa bfb bfd bff bfg bfi bfs bfy bga bgb bgd bgf bgg bgi bgk bgs bi- bia bib bid bif big bii bik bis biy bka bkb bkf bkg bkk bks bsa bsb bsd bsf bsg bsi bsk bss bsy by- bya byd byf byg byi byk bys daa dab dad daf dag dai dak das day dba dbb dbd dbf dbg dbi dbk dbs dby dda ddb ddd ddf ddg ddi ddk dds ddy dfa dfb dfd dff dfg dfi dfk dfs dga dgd dgf dgg dgi dgk dgs di- dia dib did dif dig dii dik dis diy dka dkb dkg dki dkk dks dsa dsb dsd dsf dsg dsi dsk dss dsy dy- dya dyb dyd dyk dys dyy faa fab fad faf fag fai fak fas fay fba fbb fbd fbf fbg fbi fbk fbs fda fdb fdd fdf fdg fdi fdk fds ffa ffd fff ffg ffi ffk ffs ffy fga fgb fgd fgf fgg fgi fgs fia fib fid fif fig fii fik fis fka fkb fkf fkg fki fkk fsa fsb fsd fsf fsg fsi fsk fss fy- fya fyb fyi fyk g-d gaa gab gad gaf gag gai gak gas gay gba gbd gbf gbg gbi gbk gbs gby gda gdb gdd gdf gdi gdk gds gfa gfb gfd gff gfi gfk gfs gfy gga ggb ggd ggg ggi ggs gia gib gid gif gig gii gik gis giy gka gkb gkd gks gsa gsb gsd gsf gsg gsi gsk gss gy- gya gyb gyd gyf gys i-d i-f ia- iaa iab iad iaf iag iai ias iba ibb ibd ibf ibg ibi ibk ibs iby ida idb idd idf idg idi idk ids idy ifa ifb ifd iff ifg ifi ifs ify iga igb igd igf igg igi igk igs igy iia iib iid iif iii iis ika ikb ikf iki ikk iks is- isa isb isd isf isg isi isk iss isy iya iys iyy ka- kaa kab kad kaf kag kai kak kas kay kba kbb kbd kbf kbi kbk kbs kda kdb kdf kdg kdk kds kdy kfa kfd kff kfg kfi kfs kga kgb kgd kgf kgi kgs kgy kia kib kid kif kig kii kik kis kkb kki kkk kks kky ksa ksb ksd ksf ksg ksi ksk kss kya kyd kys saa sab sad saf sag sai sak sas say sba sbb sbd sbf sbg sbi sbk sbs sby sda sdb sdd sdf sdg sdi sdk sds sdy sfa sfb sfd sff sfg sfi sfk sfs sga sgb sgd sgf sgg sgi sgk sgs sia sib sid sif sig sii sik sis sk- ska skb skd skf skg ski skk sks sky ss- ssa ssb ssd ssf ssg ssi ssk sss sy- sya syb syd syg syi syk sys yaa yab yad yaf yag yai yak yas yay ybf ybg ybi ybs yby yda ydg yds ydy yfa yfd yff yfs yga yid yif yig yii yis yka yki ykk ysa ysb ysg ysi ysk yss ysy yyb yyf yyg yys yyy