-er c-- ccc cce cch cco ccp ccr ccv ce- cec cee ceh ceo cep cer cev ch- chc che chh cho chp chr chv co- coc coe coh coo cop cor cov cpc cpe cph cpo cpp cpr cpv crc cre crh cro crp crr crv cvc cve cvh cvo cvp cvr cvv ec- ecc ece ech eco ecr ecv eec eee eeo eep eer eev ehc ehe ehh eho ehp ehr ehv eo- eoc eoe eoh eoo eop eor ep- epc epe eph epo epp epr erc ere erh ero erp err erv evc eve evh evo evp evr evv hcc hce hch hco hcp hcr hcv he- hec hee heh heo hep her hev hhc hhe hhh hho hhp hhr hhv hoc hoe hoh hoo hop hor hov hpc hpe hph hpo hpp hpr hpv hr- hrc hre hrh hro hrp hrr hrv hv- hvc hvo hvp hvr hvv oc- occ och oco ocp ocr ocv oec oee oeh oeo oep oer ohc ohe ohh oho ohp ohr oo- ooc ooh ooo oop oor oov op- opc ope oph opo opp opr opv or- orc ore orh oro orp orr orv ov- ovc ove ovh ovo ovp ovv p-p pcc pce pch pco pcp pcr pcv pec pee peh peo pep per pev phc phe pho php phr phv poc poe poh poo pop por pov ppc ppe pph ppo ppp ppr ppv prc pre prh pro prp prr prv pvc pve pvh pvo pvp pvr pvv rcc rce rch rco rcp rcr rcv re- rec ree reh reo rep rer rev rh- rhc rhe rhh rho rhp rhr rhv roc roe roh roo rop ror rov rpc rpe rph rpo rpp rpr rpv rrc rrh rrp rrr rvc rve rvh rvo rvp rvr rvv v-e vcc vce vch vco vcp vcr vec vee veh veo vep ver vh- vhc vhe vho vhp voc voe voh voo vop vor vov vpc vpe vph vpo vpp vpr vrc vre vrh vrp vrr vvc vvo vvr vvv