-er -ol c-- ccc ccd cce ccl cco ccp ccr ccv cdc cdd cde cdl cdo cdp cdr cdv ce- cec ced cee cel ceo cep cer cev cl- clc cld cle cll clo clp clr clv co- coc cod coe col coo cop cor cov cpc cpd cpe cpl cpo cpp cpr cpv crc crd cre crl cro crp crr crv cvc cvd cve cvl cvo cvp cvr cvv dcc dcd dce dcl dco dcp dcr dcv ddc ddd dde ddl ddo ddp ddr de- dec ded dee del deo dep der dev dl- dlc dld dle dll dlo dlp dlr dlv doc dod doe dol doo dop dor dov dpc dpd dpe dpl dpo dpp dpr dpv drc drd dre drl dro drp drr drv dvc dvd dve dvl dvp dvr ec- ecc ecd ece ecl eco ecr ecv ed- edc edd ede edl edo edp edr eec eed eee eel eeo eep eer eev elc eld ele ell elo elp elr elv eo- eoc eod eoe eol eoo eop eor ep- epc epd epe epl epo epp epr erc erd ere erl ero erp err erv evc evd eve evl evo evp evr evv l-p lcc lcd lce lcl lco lcp lcr lcv ldc ldd lde ldl ldo ldp ldr ldv lec led lee lel leo lep ler lev llc lld lle lll llo llp llr llv loc lod loe lol loo lop lor lov lpc lpd lpe lpl lpo lpp lpr lpv lrc lrd lro lrp lrr lrv lvc lvd lve lvl lvp lvr lvv oc- occ ocd ocl oco ocp ocr ocv odc odd ode odl odo odp odr odv oec oed oee oel oeo oep oer olc old ole oll olo olp oo- ooc ood ool ooo oop oor oov op- opc opd ope opl opo opp opr opv or- orc ord ore orl oro orp orr orv ov- ovc ovd ove ovl ovo ovp ovv p-p pcc pcd pce pcl pco pcp pcr pcv pdc pdd pde pdl pdo pdp pdr pdv pec ped pee pel peo pep per pev plc pld ple pll plo plp plr plv poc pod poe pol poo pop por pov ppc ppd ppe ppl ppo ppp ppr ppv prc prd pre prl pro prp prr prv pvc pvd pve pvl pvo pvp pvr pvv rcc rcd rce rcl rco rcp rcr rcv rdc rdd rde rdl rdo rdp rdr rdv re- rec red ree rel reo rep rer rev rlc rld rle rll rlo rlp rlr roc rod roe rol roo rop ror rov rpc rpd rpe rpl rpo rpp rpr rpv rrc rrd rrl rrp rrr rvc rvd rve rvl rvo rvp rvr rvv v-e vcc vcd vce vcl vco vcp vcr vdc vdd vde vdl vdo vdp vdr vdv vec ved vee vel veo vep ver vl- vlc vld vle vll vlo vlp vlv voc vod voe vol voo vop vor vov vpc vpd vpe vpl vpo vpp vpr vrc vrd vre vrp vrr vvc vvo vvr vvv