-er -ey c-- ccc cce cch cco ccp ccr ccs ce- cec cee ceh ceo cep cer ces cey ch- chc che chh cho chp chr chs chy co- coc coe coh coo cop cor cos coy cpc cpe cph cpo cpp cpr cps crc cre crh cro crp crr crs cry csc cse csh cso csp csr css csy cyc cye cyo cyp cyr cys ec- ecc ece ech eco ecr ecs eec eee eeo eep eer ees eey ehc ehe ehh eho ehp ehr ehs eo- eoc eoe eoh eoo eop eor eos ep- epc epe eph epo epp epr eps erc ere erh ero erp err ers ery es- esc ese esh eso esp esr ess esy eyc eye eyo eyp eyr eys hcc hce hch hco hcp hcr hcs hcy he- hec hee heh heo hep her hes hey hhc hhe hhh hho hhp hhr hhs hhy hoc hoe hoh hoo hop hor hos hoy hpc hpe hph hpo hpp hpr hps hpy hr- hrc hre hrh hro hrp hrr hrs hsc hse hsh hsp hsr hss hsy hy- hyc hye hyh hyo hyp hyr hys hyy oc- occ och oco ocp ocr ocs oec oee oeh oeo oep oer oes oey ohc ohe ohh oho ohp ohr ohs oo- ooc ooh ooo oop oor oos op- opc ope oph opo opp opr ops opy or- orc ore orh oro orp orr ors ory os- osc ose osh oso osp osr oss oye oyo oys p-p pcc pce pch pco pcp pcr pcs pec pee peh peo pep per pes pey phc phe pho php phr phs phy poc poe poh poo pop por pos poy ppc ppe pph ppo ppp ppr pps prc pre prh pro prp prr prs pry ps- psc pse psh pso psp psr pss psy py- pyc pye pyo pyr pys rcc rce rch rco rcp rcr rcs re- rec ree reh reo rep rer res rey rh- rhc rhe rhh rho rhp rhr rhs roc roe roh roo rop ror ros roy rpc rpe rph rpo rpp rpr rps rrc rrh rrp rrr rrs rsc rse rsh rso rsp rsr rss ry- ryc rye ryo ryr rys ryy scc sce sch sco scp scr scs se- sec see seh seo sep ser ses sey sh- shc she shh sho shp shr shs shy soc soe soh soo sop sor sos soy spc spe sph spo spp spr sps spy sr- src sre srh sro srp srr srs sry ss- ssc sse ssh sso ssp ssr sss sy- syc sye syh syp syr sys ycc yce ych yco ycp ycs ycy yec yee yeh yeo yep yer yes yey yhc yhe yhs yoc yoe yoo yop yor yos yoy ypo yps yrc yre yro yrp yrs ysc yse yso ysp ysr yss ysy yyc yye yys yyy