-er -ic -ol c-- ccc ccd cce cci cck ccl cco ccr cdc cdd cde cdi cdk cdl cdo cdr ce- cec ced cee cei cek cel ceo cer ci- cic cid cie cii cik cil cio cir ckc ckd cki cko cl- clc cld cle cli clk cll clo clr co- coc cod coe coi cok col coo cor crc crd cre cri crk crl cro crr dcc dcd dce dci dck dcl dco dcr ddc ddd dde ddi ddk ddl ddo ddr de- dec ded dee dei dek del deo der di- dic did die dii dik dil dio dir dkc dke dki dkk dkl dko dkr dl- dlc dld dle dli dlk dll dlo dlr doc dod doe doi dok dol doo dor drc drd dre dri drk drl dro drr ec- ecc ecd ece eci eck ecl eco ecr ed- edc edd ede edi edk edl edo edr eec eed eee eek eel eeo eer eic eid eie eii eik eil eio eir ekc ekd eke eki ekl eko ekr elc eld ele eli elk ell elo elr eo- eoc eod eoe eoi eok eol eoo eor erc erd ere eri erk erl ero err i-d icc icd ice ici ick icl ico icr idc idd ide idi idk idl ido idr ie- iec ied iee iei iek iel ier iic iid iie iii iil iio iir ikc ike iki ikk ikl iko ikr il- ilc ild ile ili ilk ill ilo ilr io- ioc iod ioe ioi iol ioo ior ir- irc ird ire iri irk irl iro irr kcc kcd kce kci kck kcl kcr kdc kde kdk kdl kdo kdr ke- kec ked kee kei kek kel keo ker kic kid kie kii kik kil kio kir kkc kke kki kkk kkl kkr kl- klc kld kli klo klr koc kod koe koi kok kol koo kor krc krd kri krk krl kro krr lcc lcd lce lci lck lcl lco lcr ldc ldd lde ldi ldk ldl ldo ldr lec led lee lei lek lel leo ler lic lid lie lii lik lil lio lir lkl lkr llc lld lle lli llk lll llo llr loc lod loe loi lok lol loo lor lrc lrd lri lrk lro lrr o-i oc- occ ocd oci ock ocl oco ocr odc odd ode odi odl odo odr oec oed oee oei oel oeo oer oic oid oie oii oik oil oio oir okc okd oke oki okk okl oko okr olc old ole oli olk oll olo oo- ooc ood ooi ook ool ooo oor or- orc ord ore ori ork orl oro orr rcc rcd rce rci rcl rco rcr rdc rdd rde rdi rdl rdo rdr re- rec red ree rei rek rel reo rer ric rid rie rii rik ril rio rir rkc rke rkk rko rlc rld rle rli rll rlo rlr roc rod roe roi rok rol roo ror rrc rrd rri rrk rrl rrr