-ey c-- ccc cce cco ccp ccs ce- cec cee ceo cep ces cey co- coc coe coo cop cos coy cpc cpe cpo cpp cps csc cse cso csp css csy cyc cye cyo cyp cys ec- ecc ece eco ecs eec eee eeo eep ees eey eo- eoc eoe eoo eop eos ep- epc epe epo epp eps es- esc ese eso esp ess esy eyc eye eyo eyp eys oc- occ oco ocp ocs oec oee oeo oep oes oey oo- ooc ooo oop oos op- opc ope opo opp ops opy os- osc ose oso osp oss oye oyo oys p-p pcc pce pco pcp pcs pec pee peo pep pes pey poc poe poo pop pos poy ppc ppe ppo ppp pps ps- psc pse pso psp pss psy py- pyc pye pyo pys scc sce sco scp scs se- sec see seo sep ses sey soc soe soo sop sos soy spc spe spo spp sps spy ss- ssc sse sso ssp sss sy- syc sye syp sys ycc yce yco ycp ycs ycy yec yee yeo yep yes yey yoc yoe yoo yop yos yoy ypo yps ysc yse yso ysp yss ysy yyc yye yys yyy