-er -ic -ol c-- ccc cce cci cck ccl cco ccp ccr ce- cec cee cei cek cel ceo cep cer ci- cic cie cii cik cil cio cip cir ckc cki cko cl- clc cle cli clk cll clo clp clr co- coc coe coi cok col coo cop cor cpc cpe cpi cpk cpl cpo cpp cpr crc cre cri crk crl cro crp crr ec- ecc ece eci eck ecl eco ecr eec eee eek eel eeo eep eer eic eie eii eik eil eio eip eir ekc eke eki ekl eko ekp ekr elc ele eli elk ell elo elp elr eo- eoc eoe eoi eok eol eoo eop eor ep- epc epe epi epl epo epp epr erc ere eri erk erl ero erp err icc ice ici ick icl ico icp icr ie- iec iee iei iek iel iep ier iic iie iii iil iio iip iir ikc ike iki ikk ikl iko ikr il- ilc ile ili ilk ill ilo ilp ilr io- ioc ioe ioi iol ioo iop ior ipc ipe ipi ipl ipo ipp ipr ir- irc ire iri irk irl iro irp irr kcc kce kci kck kcl kcp kcr ke- kec kee kei kek kel keo kep ker kic kie kii kik kil kio kip kir kkc kke kki kkk kkl kkp kkr kl- klc kli klo klr koc koe koi kok kol koo kop kor kpc kpe kpi kpk kpl kpo kpp kpr krc kri krk krl kro krp krr l-p lcc lce lci lck lcl lco lcp lcr lec lee lei lek lel leo lep ler lic lie lii lik lil lio lip lir lkl lkp lkr llc lle lli llk lll llo llp llr loc loe loi lok lol loo lop lor lpc lpe lpi lpk lpl lpo lpp lpr lrc lri lrk lro lrp lrr o-i oc- occ oci ock ocl oco ocp ocr oec oee oei oel oeo oep oer oic oie oii oik oil oio oip oir okc oke oki okk okl oko okp okr olc ole oli olk oll olo olp oo- ooc ooi ook ool ooo oop oor op- opc ope opi opk opl opo opp opr or- orc ore ori ork orl oro orp orr p-p pcc pce pci pck pcl pco pcp pcr pec pee pei pek pel peo pep per pic pie pii pik pil pio pip pir pkc pke pki pkl pko pkp pkr plc ple pli plk pll plo plp plr poc poe poi pok pol poo pop por ppc ppe ppi ppk ppl ppo ppp ppr prc pre pri prk prl pro prp prr rcc rce rci rcl rco rcp rcr re- rec ree rei rek rel reo rep rer ric rie rii rik ril rio rip rir rkc rke rkk rko rkp rlc rle rli rll rlo rlp rlr roc roe roi rok rol roo rop ror rpc rpe rpi rpk rpl rpo rpp rpr rrc rri rrk rrl rrp rrr