-er -ol c-- c-j ccc cce ccj cck ccl cco ccr ccv ce- cec cee cej cek cel ceo cer cev cjc cjk cjr ckc cko cl- clc cle clj clk cll clo clr clv co- coc coe coj cok col coo cor cov crc cre crj crk crl cro crr crv cvc cve cvk cvl cvo cvr cvv ec- ecc ece ecj eck ecl eco ecr ecv eec eee eek eel eeo eer eev ejc ejl ejo ekc eke ekl eko ekr ekv elc ele elk ell elo elr elv eo- eoc eoe eok eol eoo eor erc ere erk erl ero err erv evc eve evl evo evr evv jcc jce jck jcl jco jcr jec jee jej jek jel jeo jer jjc jjj jjk jjl jjr jkk jkl jko jkr jkv jlc jle jll jlo jlr joc joe joj jok jol joo jor jrc jrk jrl jro jrr jvc jvl kcc kce kck kcl kcr ke- kec kee kek kel keo ker kev kjc kje kjr kkc kke kkk kkl kkr kkv kl- klc klo klr klv koc koe kok kol koo kor krc krk krl kro krr krv kvk kvo kvr kvv lcc lce lcj lck lcl lco lcr lcv lec lee lej lek lel leo ler lev lje ljj lkl lkr llc lle llj llk lll llo llr llv loc loe loj lok lol loo lor lov lrc lrk lro lrr lrv lvc lve lvl lvr lvv oc- occ ocj ock ocl oco ocr ocv oec oee oel oeo oer ojc oje ojo okc oke okj okk okl oko okr olc ole olk oll olo oo- ooc ook ool ooo oor oov or- orc ore ork orl oro orr orv ov- ovc ove ovl ovo ovv rcc rce rcj rcl rco rcr rcv re- rec ree rek rel reo rer rev rjc rjk rjr rkc rke rkk rko rkv rlc rle rll rlo rlr roc roe roj rok rol roo ror rov rrc rrk rrl rrr rvc rve rvl rvo rvr rvv v-e vcc vce vcl vco vcr vec vee vek vel veo ver vl- vlc vle vlk vll vlo vlv voc voe vok vol voo vor vov vrc vre vrk vrr vvc vvo vvr vvv