-er -ol c-- ccc ccd cce ccl cco ccp ccr cdc cdd cde cdl cdo cdp cdr ce- cec ced cee cel ceo cep cer cl- clc cld cle cll clo clp clr co- coc cod coe col coo cop cor cpc cpd cpe cpl cpo cpp cpr crc crd cre crl cro crp crr dcc dcd dce dcl dco dcp dcr ddc ddd dde ddl ddo ddp ddr de- dec ded dee del deo dep der dl- dlc dld dle dll dlo dlp dlr doc dod doe dol doo dop dor dpc dpd dpe dpl dpo dpp dpr drc drd dre drl dro drp drr ec- ecc ecd ece ecl eco ecr ed- edc edd ede edl edo edp edr eec eed eee eel eeo eep eer elc eld ele ell elo elp elr eo- eoc eod eoe eol eoo eop eor ep- epc epd epe epl epo epp epr erc erd ere erl ero erp err l-p lcc lcd lce lcl lco lcp lcr ldc ldd lde ldl ldo ldp ldr lec led lee lel leo lep ler llc lld lle lll llo llp llr loc lod loe lol loo lop lor lpc lpd lpe lpl lpo lpp lpr lrc lrd lro lrp lrr oc- occ ocd ocl oco ocp ocr odc odd ode odl odo odp odr oec oed oee oel oeo oep oer olc old ole oll olo olp oo- ooc ood ool ooo oop oor op- opc opd ope opl opo opp opr or- orc ord ore orl oro orp orr p-p pcc pcd pce pcl pco pcp pcr pdc pdd pde pdl pdo pdp pdr pec ped pee pel peo pep per plc pld ple pll plo plp plr poc pod poe pol poo pop por ppc ppd ppe ppl ppo ppp ppr prc prd pre prl pro prp prr rcc rcd rce rcl rco rcp rcr rdc rdd rde rdl rdo rdp rdr re- rec red ree rel reo rep rer rlc rld rle rll rlo rlp rlr roc rod roe rol roo rop ror rpc rpd rpe rpl rpo rpp rpr rrc rrd rrl rrp rrr