-ey a-a a-b a-c aaa aab aac aae aah aao aap aas aay ab- aba abb abc abe abh abo abp abs aby ac- aca acb acc ace ach aco acp acs acy aea aeb aec aee aeh aeo aep aes aey aha ahb ahc ahe ahh aho ahp ahs ahy aoa aob aoc aoe aoh aoo aop aos ap- apa apb apc ape aph apo app aps apy as- asa asb asc ase ash aso asp ass asy ay- aya ayc aye ayh ayo ayp ays b-p baa bab bac bae bah bao bap bas bay bba bbb bbc bbe bbh bbo bbp bbs bby bca bcb bcc bce bch bco bcp bcs bcy be- bea beb bec bee beh beo bep bes bey bha bhb bhc bhe bhh bho bhp bhs boa bob boc boe boh boo bop bos boy bpa bpb bpc bpe bph bpo bpp bps bpy bsa bsb bsc bse bsh bso bsp bss bsy by- bya byc bye byh byo byp bys c-- caa cab cac cae cah cao cap cas cay cba cbb cbc cbe cbh cbo cbp cbs cby cca ccb ccc cce cch cco ccp ccs ce- cea ceb cec cee ceh ceo cep ces cey ch- cha chb chc che chh cho chp chs chy co- coa cob coc coe coh coo cop cos coy cpa cpb cpc cpe cph cpo cpp cps csa csb csc cse csh cso csp css csy cya cyb cyc cye cyo cyp cys eaa eab eac eae eah eao eap eas eba ebb ebc ebe ebh ebo ebp ebs eby ec- eca ecb ecc ece ech eco ecs eea eeb eec eee eeo eep ees eey eha ehb ehc ehe ehh eho ehp ehs eo- eoa eob eoc eoe eoh eoo eop eos ep- epa epb epc epe eph epo epp eps es- esa esb esc ese esh eso esp ess esy eya eyc eye eyo eyp eys haa hab hac hae hah hao hap has hay hba hbb hbc hbe hbh hbo hbp hbs hby hca hcb hcc hce hch hco hcp hcs hcy he- hea heb hec hee heh heo hep hes hey hha hhb hhc hhe hhh hho hhp hhs hhy hoa hob hoc hoe hoh hoo hop hos hoy hpa hpb hpc hpe hph hpo hpp hps hpy hsa hsb hsc hse hsh hsp hss hsy hy- hya hyb hyc hye hyh hyo hyp hys hyy oaa oab oac oae oah oao oap oas ob- oba obb obc obe obh obo obp obs oby oc- oca ocb occ och oco ocp ocs oea oeb oec oee oeh oeo oep oes oey oha ohc ohe ohh oho ohp ohs oo- ooa oob ooc ooh ooo oop oos op- opa opb opc ope oph opo opp ops opy os- osa osb osc ose osh oso osp oss oya oye oyo oys p-p paa pab pac pae pah pao pap pas pay pba pbb pbc pbe pbo pbp pbs pby pca pcb pcc pce pch pco pcp pcs pea peb pec pee peh peo pep pes pey pha phb phc phe pho php phs phy poa pob poc poe poh poo pop pos poy ppa ppb ppc ppe pph ppo ppp pps ps- psa psb psc pse psh pso psp pss psy py- pya pyb pyc pye pyo pys saa sab sac sae sah sao sap sas say sba sbb sbc sbe sbh sbo sbp sbs sby sca scb scc sce sch sco scp scs se- sea seb sec see seh seo sep ses sey sh- sha shb shc she shh sho shp shs shy soa sob soc soe soh soo sop sos soy spa spb spc spe sph spo spp sps spy ss- ssa ssb ssc sse ssh sso ssp sss sy- sya syb syc sye syh syp sys yaa yab yac yae yah yao yap yas yay ybc ybe ybp ybs yby yca ycc yce ych yco ycp ycs ycy yea yeb yec yee yeh yeo yep yes yey yha yhc yhe yhs yob yoc yoe yoo yop yos yoy ypa ypo yps ysa ysb ysc yse yso ysp yss ysy yyb yyc yye yys yyy