-er -ic -ol c-- ccc cce cci ccl cco ccp ccr ccx ce- cec cee cei cel ceo cep cer cex ci- cic cie cii cil cio cip cir cix cl- clc cle cli cll clo clp clr clx co- coc coe coi col coo cop cor cox cpc cpe cpi cpl cpo cpp cpr cpx crc cre cri crl cro crp crr crx cxc cxi cxl cxo cxp cxr cxx ec- ecc ece eci ecl eco ecr ecx eec eee eel eeo eep eer eex eic eie eii eil eio eip eir eix elc ele eli ell elo elp elr elx eo- eoc eoe eoi eol eoo eop eor ep- epc epe epi epl epo epp epr epx erc ere eri erl ero erp err ex- exc exe exi exl exo exp exr exx icc ice ici icl ico icp icr ie- iec iee iei iel iep ier iex iic iie iii iil iio iip iir iix il- ilc ile ili ill ilo ilp ilr ilx io- ioc ioe ioi iol ioo iop ior ipc ipe ipi ipl ipo ipp ipr ipx ir- irc ire iri irl iro irp irr irx ixc ixe ixi ixl l-p lcc lce lci lcl lco lcp lcr lcx lec lee lei lel leo lep ler lex lic lie lii lil lio lip lir lix llc lle lli lll llo llp llr loc loe loi lol loo lop lor lox lpc lpe lpi lpl lpo lpp lpr lpx lrc lri lro lrp lrr lxc lxi lxo lxr lxx o-i oc- occ oci ocl oco ocp ocr ocx oec oee oei oel oeo oep oer oex oic oie oii oil oio oip oir olc ole oli oll olo olp oo- ooc ooi ool ooo oop oor oox op- opc ope opi opl opo opp opr opx or- orc ore ori orl oro orp orr orx ox- oxc oxi oxo oxx p-p pcc pce pci pcl pco pcp pcr pcx pec pee pei pel peo pep per pex pic pie pii pil pio pip pir pix plc ple pli pll plo plp plr plx poc poe poi pol poo pop por pox ppc ppe ppi ppl ppo ppp ppr ppx prc pre pri prl pro prp prr prx pxc pxe pxl pxr rcc rce rci rcl rco rcp rcr rcx re- rec ree rei rel reo rep rer rex ric rie rii ril rio rip rir rix rlc rle rli rll rlo rlp rlr roc roe roi rol roo rop ror rox rpc rpe rpi rpl rpo rpp rpr rpx rrc rri rrl rrp rrr rxp rxr xci xcl xcp xcr xcx xee xel xep xer xex xic xie xii xio xix xli xlr xoc xoi xoo xop xor xox xpc xpe xpl xpo xpp xrc xrx xxi xxl xxo xxp xxx