-ey a-a a-b a-t aaa aab aad aae aap aas aat aay ab- aba abb abd abe abp abs abt aby ad- ada adb add ade adp ads adt ady aea aeb aed aee aep aes aet aey ap- apa apb apd ape app aps apt apy as- asa asb asd ase asp ass ast asy at- ata atb atd ate atp ats att ay- aya ayd aye ayp ays ayt b-p baa bab bad bae bap bas bat bay bba bbb bbd bbe bbp bbs bbt bby bda bdb bdd bde bdp bds bdt bdy be- bea beb bed bee bep bes bet bey bpa bpb bpd bpe bpp bps bpt bpy bsa bsb bsd bse bsp bss bst bsy bta btb btd bte btp bts btt bty by- bya byd bye byp bys byt daa dab dad dae dap das dat day dba dbb dbd dbe dbp dbs dbt dby dda ddb ddd dde ddp dds ddt ddy de- dea deb ded dee dep des det dey dpa dpb dpd dpe dpp dps dpt dsa dsb dsd dse dsp dss dst dsy dta dtb dtd dte dtp dts dtt dty dy- dya dyb dyd dye dyp dys dyy eaa eab ead eae eap eas eat eba ebb ebd ebe ebp ebs ebt eby ed- eda edb edd ede edp eds edt edy eea eeb eed eee eep ees eet eey ep- epa epb epd epe epp eps ept es- esa esb esd ese esp ess est esy eta etb etd ete etp ets ett ety eya eyd eye eyp eys eyt p-p paa pab pad pae pap pas pat pay pba pbb pbd pbe pbp pbs pbt pby pda pdb pdd pde pdp pds pdt pea peb ped pee pep pes pet pey ppa ppb ppd ppe ppp pps ppt ps- psa psb psd pse psp pss pst psy pt- pta ptb ptd pte ptp pts ptt pty py- pya pyb pyd pye pys pyt saa sab sad sae sap sas sat say sba sbb sbd sbe sbp sbs sbt sby sda sdb sdd sde sdp sds sdt sdy se- sea seb sed see sep ses set sey spa spb spd spe spp sps spt spy ss- ssa ssb ssd sse ssp sss sst sta stb std ste stp sts stt sty sy- sya syb syd sye syp sys syt taa tab tad tae tap tas tat tay tba tbb tbd tbe tbp tbs tbt tda tdb tdd tde tdp tds tdt tdy te- tea teb ted tee tep tes tet tey tpa tpb tpd tpe tpp tps tpt tsa tsb tsd tse tsp tss tst tsy tta ttb ttd tte ttp tts ttt tty tya tyd tye typ tys tyt yaa yab yad yae yap yas yat yay ybe ybp ybs yby yda yde yds ydt ydy yea yeb yed yee yep yes yet yey ypa ypd yps ysa ysb yse ysp yss yst ysy yta ytd yte ytp yts ytt yyb yye yys yyt yyy