-er -ey c-- ccc cce cco ccp ccr ccv ce- cec cee ceo cep cer cev cey co- coc coe coo cop cor cov coy cpc cpe cpo cpp cpr cpv crc cre cro crp crr crv cry cvc cve cvo cvp cvr cvv cyc cye cyo cyp cyr ec- ecc ece eco ecr ecv eec eee eeo eep eer eev eey eo- eoc eoe eoo eop eor ep- epc epe epo epp epr erc ere ero erp err erv ery evc eve evo evp evr evv evy eyc eye eyo eyp eyr oc- occ oco ocp ocr ocv oec oee oeo oep oer oey oo- ooc ooo oop oor oov op- opc ope opo opp opr opv opy or- orc ore oro orp orr orv ory ov- ovc ove ovo ovp ovv oye oyo p-p pcc pce pco pcp pcr pcv pec pee peo pep per pev pey poc poe poo pop por pov poy ppc ppe ppo ppp ppr ppv prc pre pro prp prr prv pry pvc pve pvo pvp pvr pvv py- pyc pye pyo pyr rcc rce rco rcp rcr rcv re- rec ree reo rep rer rev rey roc roe roo rop ror rov roy rpc rpe rpo rpp rpr rpv rrc rrp rrr rvc rve rvo rvp rvr rvv rvy ry- ryc rye ryo ryr ryy v-e vcc vce vco vcp vcr vcy vec vee veo vep ver vey voc voe voo vop vor vov voy vpc vpe vpo vpp vpr vrc vre vrp vrr vry vvc vvo vvr vvv vye vyp ycc yce yco ycp ycv ycy yec yee yeo yep yer yev yey yoc yoe yoo yop yor yoy ypo yrc yre yro yrp yve yvo yvr yvy yyc yye yyy