-ey c-- ccc cce cco ccp ccs cct ccx ce- cec cee ceo cep ces cet cex cey co- coc coe coo cop cos cot cox coy cpc cpe cpo cpp cps cpt cpx csc cse cso csp css cst csx csy ctc cte cto ctp cts ctt ctx cty cxc cxo cxp cxs cxt cxx cyc cye cyo cyp cys cyt ec- ecc ece eco ecs ect ecx eec eee eeo eep ees eet eex eey eo- eoc eoe eoo eop eos eot ep- epc epe epo epp eps ept epx es- esc ese eso esp ess est esx esy etc ete eto etp ets ett etx ety ex- exc exe exo exp exs ext exx exy eyc eye eyo eyp eys eyt oc- occ oco ocp ocs oct ocx oec oee oeo oep oes oet oex oey oo- ooc ooo oop oos oot oox op- opc ope opo opp ops opt opx opy os- osc ose oso osp oss ost osx ot- otc ote oto otp ots ott ox- oxc oxo oxt oxx oxy oye oyo oys p-p pcc pce pco pcp pcs pct pcx pec pee peo pep pes pet pex pey poc poe poo pop pos pot pox poy ppc ppe ppo ppp pps ppt ppx ps- psc pse pso psp pss pst psx psy pt- ptc pte pto ptp pts ptt ptx pty pxc pxe pxs pxt py- pyc pye pyo pys pyt pyx scc sce sco scp scs sct scx se- sec see seo sep ses set sex sey soc soe soo sop sos sot sox soy spc spe spo spp sps spt spx spy ss- ssc sse sso ssp sss sst ssx stc ste sto stp sts stt stx sty sxc sxs sxt sy- syc sye syp sys syt syx t-x tcc tce tco tcp tcs tct tcx te- tec tee teo tep tes tet tex tey to- toc toe too top tos tot tox toy tpc tpe tpo tpp tps tpt tpx tsc tse tso tsp tss tst tsx tsy ttc tte tto ttp tts ttt ttx tty txe txs txt tyc tye tyo typ tys tyt xcp xcx xee xep xes xet xex xoc xoo xop xos xot xox xpc xpe xpo xpp xps xpt xsc xsp xss xst xtc xtp xts xtx xty xxo xxp xxx xxy xyp xyy ycc yce yco ycp ycs ycy yec yee yeo yep yes yet yex yey yoc yoe yoo yop yos yot yox yoy ypo yps ysc yse yso ysp yss yst ysy ytc yte yto ytp yts ytt yxe yxy yyc yye yys yyt yyy