-ey a-a a-b a-t aaa aab aad aae aas aat aau aay ab- aba abb abd abe abs abt abu aby ad- ada adb add ade ads adt adu ady aea aeb aed aee aes aet aeu aey as- asa asb asd ase ass ast asu asy at- ata atb atd ate ats att atu au- aua aub aud aue aus aut ay- aya ayd aye ays ayt ayu b-u baa bab bad bae bas bat bau bay bba bbb bbd bbe bbs bbt bbu bby bda bdb bdd bde bds bdt bdu bdy be- bea beb bed bee bes bet beu bey bsa bsb bsd bse bss bst bsu bsy bta btb btd bte bts btt btu bty bua bub bud bue bus but buu buy by- bya byd bye bys byt byu daa dab dad dae das dat dau day dba dbb dbd dbe dbs dbt dbu dby dda ddb ddd dde dds ddt ddu ddy de- dea deb ded dee des det deu dey dsa dsb dsd dse dss dst dsu dsy dta dtb dtd dte dts dtt dtu dty dua dub dud due dus dut duy dy- dya dyb dyd dye dys dyu dyy eaa eab ead eae eas eat eau eba ebb ebd ebe ebs ebt ebu eby ed- eda edb edd ede eds edt edu edy eea eeb eed eee ees eet eey es- esa esb esd ese ess est esu esy eta etb etd ete ets ett etu ety eu- eua eub eud eue eus eut eya eyd eye eys eyt saa sab sad sae sas sat sau say sba sbb sbd sbe sbs sbt sbu sby sda sdb sdd sde sds sdt sdu sdy se- sea seb sed see ses set seu sey ss- ssa ssb ssd sse sss sst ssu sta stb std ste sts stt stu sty sua sub sud sue sus sut suu suy sy- sya syb syd sye sys syt syu taa tab tad tae tas tat tau tay tba tbb tbd tbe tbs tbt tbu tda tdb tdd tde tds tdt tdu tdy te- tea teb ted tee tes tet teu tey tsa tsb tsd tse tss tst tsu tsy tta ttb ttd tte tts ttt ttu tty tua tub tud tue tus tut tuu tuy tya tyd tye tys tyt ua- uaa uab uad uae uas uat uau uay uba ubb ube ubs ubt ubu uby uda udb udd ude uds udt udu uea ueb ued uee ues uet uey usa usb usd use uss ust usu uta utb utd ute uts utt utu uty uua uue uus uut uuu uys uyu yaa yab yad yae yas yat yau yay ybe ybs yby yda yde yds ydt ydy yea yeb yed yee yes yet yey ysa ysb yse yss yst ysu ysy yta ytd yte yts ytt ytu yua yud yue yus yut yuu yuy yyb yye yys yyt yyu yyy