-ey a-a a-b aaa aab aad aae aao aap aas aay ab- aba abb abd abe abo abp abs aby ad- ada adb add ade ado adp ads ady aea aeb aed aee aeo aep aes aey aoa aob aod aoe aoo aop aos ap- apa apb apd ape apo app aps apy as- asa asb asd ase aso asp ass asy ay- aya ayd aye ayo ayp ays b-p baa bab bad bae bao bap bas bay bba bbb bbd bbe bbo bbp bbs bby bda bdb bdd bde bdo bdp bds bdy be- bea beb bed bee beo bep bes bey boa bob bod boe boo bop bos boy bpa bpb bpd bpe bpo bpp bps bpy bsa bsb bsd bse bso bsp bss bsy by- bya byd bye byo byp bys daa dab dad dae dao dap das day dba dbb dbd dbe dbo dbp dbs dby dda ddb ddd dde ddo ddp dds ddy de- dea deb ded dee deo dep des dey doa dob dod doe doo dop dos doy dpa dpb dpd dpe dpo dpp dps dsa dsb dsd dse dso dsp dss dsy dy- dya dyb dyd dye dyo dyp dys dyy eaa eab ead eae eao eap eas eba ebb ebd ebe ebo ebp ebs eby ed- eda edb edd ede edo edp eds edy eea eeb eed eee eeo eep ees eey eo- eoa eob eod eoe eoo eop eos ep- epa epb epd epe epo epp eps es- esa esb esd ese eso esp ess esy eya eyd eye eyo eyp eys oaa oab oad oae oao oap oas ob- oba obb obd obe obo obp obs oby oda odb odd ode odo odp ods oea oeb oed oee oeo oep oes oey oo- ooa oob ood ooo oop oos op- opa opb opd ope opo opp ops opy os- osa osb osd ose oso osp oss oya oyd oye oyo oys p-p paa pab pad pae pao pap pas pay pba pbb pbd pbe pbo pbp pbs pby pda pdb pdd pde pdo pdp pds pea peb ped pee peo pep pes pey poa pob pod poe poo pop pos poy ppa ppb ppd ppe ppo ppp pps ps- psa psb psd pse pso psp pss psy py- pya pyb pyd pye pyo pys saa sab sad sae sao sap sas say sba sbb sbd sbe sbo sbp sbs sby sda sdb sdd sde sdo sdp sds sdy se- sea seb sed see seo sep ses sey soa sob sod soe soo sop sos soy spa spb spd spe spo spp sps spy ss- ssa ssb ssd sse sso ssp sss sy- sya syb syd sye syp sys yaa yab yad yae yao yap yas yay ybe ybp ybs yby yda yde ydo yds ydy yea yeb yed yee yeo yep yes yey yob yod yoe yoo yop yos yoy ypa ypd ypo yps ysa ysb yse yso ysp yss ysy yyb yye yys yyy