-ey a-a a-b aaa aab aad aae aaf aas aau aay ab- aba abb abd abe abf abs abu aby ad- ada adb add ade adf ads adu ady aea aeb aed aee aef aes aeu aey af- afa afb afd afe aff afs afu afy as- asa asb asd ase asf ass asu asy au- aua aub aud aue auf aus ay- aya ayd aye ayf ays ayu b-u baa bab bad bae baf bas bau bay bba bbb bbd bbe bbf bbs bbu bby bda bdb bdd bde bdf bds bdu bdy be- bea beb bed bee bef bes beu bey bfa bfb bfd bfe bff bfs bfu bfy bsa bsb bsd bse bsf bss bsu bsy bua bub bud bue buf bus buu buy by- bya byd bye byf bys byu daa dab dad dae daf das dau day dba dbb dbd dbe dbf dbs dbu dby dda ddb ddd dde ddf dds ddu ddy de- dea deb ded dee def des deu dey dfa dfb dfd dfe dff dfs dfu dsa dsb dsd dse dsf dss dsu dsy dua dub dud due duf dus duy dy- dya dyb dyd dye dys dyu dyy eaa eab ead eae eaf eas eau eba ebb ebd ebe ebf ebs ebu eby ed- eda edb edd ede edf eds edu edy eea eeb eed eee eef ees eey ef- efa efb efd efe eff efs es- esa esb esd ese esf ess esu esy eu- eua eub eud eue euf eus eya eyd eye eys faa fab fad fae faf fas fau fay fba fbb fbd fbe fbf fbs fbu fda fdb fdd fde fdf fds fdu fea feb fed fee fef fes feu fey ffa ffd ffe fff ffs ffu ffy fsa fsb fsd fse fsf fss fsu fua fub fud fue fuf fus fuu fy- fya fyb fye saa sab sad sae saf sas sau say sba sbb sbd sbe sbf sbs sbu sby sda sdb sdd sde sdf sds sdu sdy se- sea seb sed see sef ses seu sey sfa sfb sfd sfe sff sfs sfu ss- ssa ssb ssd sse ssf sss ssu sua sub sud sue suf sus suu suy sy- sya syb syd sye sys syu ua- uaa uab uad uae uaf uas uau uay uba ubb ube ubf ubs ubu uby uda udb udd ude udf uds udu uea ueb ued uee uef ues uey ufa ufd ufe uff ufs ufu usa usb usd use usf uss usu uua uue uus uuu uys uyu yaa yab yad yae yaf yas yau yay ybe ybf ybs yby yda yde yds ydy yea yeb yed yee yef yes yey yfa yfd yfe yff yfs yfu ysa ysb yse yss ysu ysy yua yud yue yus yuu yuy yyb yye yyf yys yyu yyy