-ey a-a a-b a-c aaa aab aac aad aae aao aap aas aay ab- aba abb abc abd abe abo abp abs aby ac- aca acb acc acd ace aco acp acs acy ad- ada adb adc add ade ado adp ads ady aea aeb aec aed aee aeo aep aes aey aoa aob aoc aod aoe aoo aop aos ap- apa apb apc apd ape apo app aps apy as- asa asb asc asd ase aso asp ass asy ay- aya ayc ayd aye ayo ayp ays b-p baa bab bac bad bae bao bap bas bay bba bbb bbc bbd bbe bbo bbp bbs bby bca bcb bcc bcd bce bco bcp bcs bcy bda bdb bdc bdd bde bdo bdp bds bdy be- bea beb bec bed bee beo bep bes bey boa bob boc bod boe boo bop bos boy bpa bpb bpc bpd bpe bpo bpp bps bpy bsa bsb bsc bsd bse bso bsp bss bsy by- bya byc byd bye byo byp bys c-- caa cab cac cad cae cao cap cas cay cba cbb cbc cbd cbe cbo cbp cbs cby cca ccb ccc ccd cce cco ccp ccs cda cdb cdc cdd cde cdo cdp cds cdy ce- cea ceb cec ced cee ceo cep ces cey co- coa cob coc cod coe coo cop cos coy cpa cpb cpc cpd cpe cpo cpp cps csa csb csc csd cse cso csp css csy cya cyb cyc cyd cye cyo cyp cys daa dab dac dad dae dao dap das day dba dbb dbc dbd dbe dbo dbp dbs dby dca dcb dcc dcd dce dco dcp dcs dda ddb ddc ddd dde ddo ddp dds ddy de- dea deb dec ded dee deo dep des dey doa dob doc dod doe doo dop dos doy dpa dpb dpc dpd dpe dpo dpp dps dsa dsb dsc dsd dse dso dsp dss dsy dy- dya dyb dyc dyd dye dyo dyp dys dyy eaa eab eac ead eae eao eap eas eba ebb ebc ebd ebe ebo ebp ebs eby ec- eca ecb ecc ecd ece eco ecs ed- eda edb edc edd ede edo edp eds edy eea eeb eec eed eee eeo eep ees eey eo- eoa eob eoc eod eoe eoo eop eos ep- epa epb epc epd epe epo epp eps es- esa esb esc esd ese eso esp ess esy eya eyc eyd eye eyo eyp eys oaa oab oac oad oae oao oap oas ob- oba obb obc obd obe obo obp obs oby oc- oca ocb occ ocd oco ocp ocs oda odb odc odd ode odo odp ods oea oeb oec oed oee oeo oep oes oey oo- ooa oob ooc ood ooo oop oos op- opa opb opc opd ope opo opp ops opy os- osa osb osc osd ose oso osp oss oya oyd oye oyo oys p-p paa pab pac pad pae pao pap pas pay pba pbb pbc pbd pbe pbo pbp pbs pby pca pcb pcc pcd pce pco pcp pcs pda pdb pdc pdd pde pdo pdp pds pea peb pec ped pee peo pep pes pey poa pob poc pod poe poo pop pos poy ppa ppb ppc ppd ppe ppo ppp pps ps- psa psb psc psd pse pso psp pss psy py- pya pyb pyc pyd pye pyo pys saa sab sac sad sae sao sap sas say sba sbb sbc sbd sbe sbo sbp sbs sby sca scb scc scd sce sco scp scs sda sdb sdc sdd sde sdo sdp sds sdy se- sea seb sec sed see seo sep ses sey soa sob soc sod soe soo sop sos soy spa spb spc spd spe spo spp sps spy ss- ssa ssb ssc ssd sse sso ssp sss sy- sya syb syc syd sye syp sys yaa yab yac yad yae yao yap yas yay ybc ybe ybp ybs yby yca ycc ycd yce yco ycp ycs ycy yda yde ydo yds ydy yea yeb yec yed yee yeo yep yes yey yob yoc yod yoe yoo yop yos yoy ypa ypd ypo yps ysa ysb ysc yse yso ysp yss ysy yyb yyc yye yys yyy