-ey a-a a-b aaa aab aad aae aao aap aay ab- aba abb abd abe abo abp aby ad- ada adb add ade ado adp ady aea aeb aed aee aeo aep aey aoa aob aod aoe aoo aop ap- apa apb apd ape apo app apy ay- aya ayd aye ayo ayp b-p baa bab bad bae bao bap bay bba bbb bbd bbe bbo bbp bby bda bdb bdd bde bdo bdp bdy be- bea beb bed bee beo bep bey boa bob bod boe boo bop boy bpa bpb bpd bpe bpo bpp bpy by- bya byd bye byo byp daa dab dad dae dao dap day dba dbb dbd dbe dbo dbp dby dda ddb ddd dde ddo ddp ddy de- dea deb ded dee deo dep dey doa dob dod doe doo dop doy dpa dpb dpd dpe dpo dpp dy- dya dyb dyd dye dyo dyp dyy eaa eab ead eae eao eap eba ebb ebd ebe ebo ebp eby ed- eda edb edd ede edo edp edy eea eeb eed eee eeo eep eey eo- eoa eob eod eoe eoo eop ep- epa epb epd epe epo epp eya eyd eye eyo eyp oaa oab oad oae oao oap ob- oba obb obd obe obo obp oby oda odb odd ode odo odp oea oeb oed oee oeo oep oey oo- ooa oob ood ooo oop op- opa opb opd ope opo opp opy oya oyd oye oyo p-p paa pab pad pae pao pap pay pba pbb pbd pbe pbo pbp pby pda pdb pdd pde pdo pdp pea peb ped pee peo pep pey poa pob pod poe poo pop poy ppa ppb ppd ppe ppo ppp py- pya pyb pyd pye pyo yaa yab yad yae yao yap yay ybe ybp yby yda yde ydo ydy yea yeb yed yee yeo yep yey yob yod yoe yoo yop yoy ypa ypd ypo yyb yye yyy