-er -ey c-- ccc cce cch cco ccp ccr ce- cec cee ceh ceo cep cer cey ch- chc che chh cho chp chr chy co- coc coe coh coo cop cor coy cpc cpe cph cpo cpp cpr crc cre crh cro crp crr cry cyc cye cyo cyp cyr ec- ecc ece ech eco ecr eec eee eeo eep eer eey ehc ehe ehh eho ehp ehr eo- eoc eoe eoh eoo eop eor ep- epc epe eph epo epp epr erc ere erh ero erp err ery eyc eye eyo eyp eyr hcc hce hch hco hcp hcr hcy he- hec hee heh heo hep her hey hhc hhe hhh hho hhp hhr hhy hoc hoe hoh hoo hop hor hoy hpc hpe hph hpo hpp hpr hpy hr- hrc hre hrh hro hrp hrr hy- hyc hye hyh hyo hyp hyr hyy oc- occ och oco ocp ocr oec oee oeh oeo oep oer oey ohc ohe ohh oho ohp ohr oo- ooc ooh ooo oop oor op- opc ope oph opo opp opr opy or- orc ore orh oro orp orr ory oye oyo p-p pcc pce pch pco pcp pcr pec pee peh peo pep per pey phc phe pho php phr phy poc poe poh poo pop por poy ppc ppe pph ppo ppp ppr prc pre prh pro prp prr pry py- pyc pye pyo pyr rcc rce rch rco rcp rcr re- rec ree reh reo rep rer rey rh- rhc rhe rhh rho rhp rhr roc roe roh roo rop ror roy rpc rpe rph rpo rpp rpr rrc rrh rrp rrr ry- ryc rye ryo ryr ryy ycc yce ych yco ycp ycy yec yee yeh yeo yep yer yey yhc yhe yoc yoe yoo yop yor yoy ypo yrc yre yro yrp yyc yye yyy