-ey a-a a-b aaa aab aae aan aao aap aas aay ab- aba abb abe abn abo abp abs aby aea aeb aee aen aeo aep aes aey an- ana anb ane ann ano anp ans any aoa aob aoe aon aoo aop aos ap- apa apb ape apn apo app aps apy as- asa asb ase asn aso asp ass asy ay- aya aye ayn ayo ayp ays b-p baa bab bae ban bao bap bas bay bba bbb bbe bbn bbo bbp bbs bby be- bea beb bee ben beo bep bes bey bna bnb bne bnn bno bnp bns boa bob boe bon boo bop bos boy bpa bpb bpe bpn bpo bpp bps bpy bsa bsb bse bsn bso bsp bss bsy by- bya bye byn byo byp bys eaa eab eae ean eao eap eas eba ebb ebe ebn ebo ebp ebs eby eea eeb eee een eeo eep ees eey en- ena enb ene enn eno enp ens eny eo- eoa eob eoe eon eoo eop eos ep- epa epb epe epn epo epp eps es- esa esb ese esn eso esp ess esy eya eye eyn eyo eyp eys naa nab nae nan nao nap nas nay nba nbb nbe nbn nbo nbp nbs ne- nea neb nee nen neo nep nes ney nna nnb nne nnn nno nnp nns no- noa nob noe non noo nop nos noy npa npb npe npn npo npp nps nsa nsb nse nsn nso nsp nss nsy nya nye nyn nyo nyp nys nyy oaa oab oae oan oao oap oas ob- oba obb obe obn obo obp obs oby oea oeb oee oen oeo oep oes oey on- ona onb one onn ono onp ons ony oo- ooa oob oon ooo oop oos op- opa opb ope opn opo opp ops opy os- osa osb ose osn oso osp oss oya oye oyo oys p-p paa pab pae pan pao pap pas pay pba pbb pbe pbn pbo pbp pbs pby pea peb pee pen peo pep pes pey pn- pna pnb pne pnn pno pnp pns pny poa pob poe pon poo pop pos poy ppa ppb ppe ppn ppo ppp pps ps- psa psb pse psn pso psp pss psy py- pya pyb pye pyn pyo pys saa sab sae san sao sap sas say sba sbb sbe sbn sbo sbp sbs sby se- sea seb see sen seo sep ses sey sna snb sne snn sno snp sns sny soa sob soe son soo sop sos soy spa spb spe spn spo spp sps spy ss- ssa ssb sse ssn sso ssp sss sy- sya syb sye syn syp sys yaa yab yae yan yao yap yas yay ybe ybp ybs yby yea yeb yee yen yeo yep yes yey yna yne ynn ynp yns yny yob yoe yon yoo yop yos yoy ypa ypo yps ysa ysb yse yso ysp yss ysy yyb yye yys yyy