-ey a-a a-b a-t aaa aab aae aao aap aas aat aay ab- aba abb abe abo abp abs abt aby aea aeb aee aeo aep aes aet aey aoa aob aoe aoo aop aos aot ap- apa apb ape apo app aps apt apy as- asa asb ase aso asp ass ast asy at- ata atb ate ato atp ats att ay- aya aye ayo ayp ays ayt b-p baa bab bae bao bap bas bat bay bba bbb bbe bbo bbp bbs bbt bby be- bea beb bee beo bep bes bet bey boa bob boe boo bop bos bot boy bpa bpb bpe bpo bpp bps bpt bpy bsa bsb bse bso bsp bss bst bsy bta btb bte bto btp bts btt bty by- bya bye byo byp bys byt eaa eab eae eao eap eas eat eba ebb ebe ebo ebp ebs ebt eby eea eeb eee eeo eep ees eet eey eo- eoa eob eoe eoo eop eos eot ep- epa epb epe epo epp eps ept es- esa esb ese eso esp ess est esy eta etb ete eto etp ets ett ety eya eye eyo eyp eys eyt oaa oab oae oao oap oas oat ob- oba obb obe obo obp obs obt oby oea oeb oee oeo oep oes oet oey oo- ooa oob ooo oop oos oot op- opa opb ope opo opp ops opt opy os- osa osb ose oso osp oss ost ot- ota otb ote oto otp ots ott oya oye oyo oys p-p paa pab pae pao pap pas pat pay pba pbb pbe pbo pbp pbs pbt pby pea peb pee peo pep pes pet pey poa pob poe poo pop pos pot poy ppa ppb ppe ppo ppp pps ppt ps- psa psb pse pso psp pss pst psy pt- pta ptb pte pto ptp pts ptt pty py- pya pyb pye pyo pys pyt saa sab sae sao sap sas sat say sba sbb sbe sbo sbp sbs sbt sby se- sea seb see seo sep ses set sey soa sob soe soo sop sos sot soy spa spb spe spo spp sps spt spy ss- ssa ssb sse sso ssp sss sst sta stb ste sto stp sts stt sty sy- sya syb sye syp sys syt taa tab tae tao tap tas tat tay tba tbb tbe tbo tbp tbs tbt te- tea teb tee teo tep tes tet tey to- toa tob toe too top tos tot toy tpa tpb tpe tpo tpp tps tpt tsa tsb tse tso tsp tss tst tsy tta ttb tte tto ttp tts ttt tty tya tye tyo typ tys tyt yaa yab yae yao yap yas yat yay ybe ybp ybs yby yea yeb yee yeo yep yes yet yey yob yoe yoo yop yos yot yoy ypa ypo yps ysa ysb yse yso ysp yss yst ysy yta yte yto ytp yts ytt yyb yye yys yyt yyy