-er -ic -ol c-- ccc cce cci cck ccl cco ccr ccs ccu ce- cec cee cei cek cel ceo cer ces ceu ci- cic cie cii cik cil cio cir cis ciu ckc cki cko cks cl- clc cle cli clk cll clo clr cls clu co- coc coe coi cok col coo cor cos cou crc cre cri crk crl cro crr crs cru csc cse csi csk csl cso csr css csu cuc cue cui cuk cul cuo cur cus cuu ec- ecc ece eci eck ecl eco ecr ecs ecu eec eee eek eel eeo eer ees eic eie eii eik eil eio eir eis eiu ekc eke eki ekl eko ekr eks eku elc ele eli elk ell elo elr els elu eo- eoc eoe eoi eok eol eoo eor eos eou erc ere eri erk erl ero err ers eru es- esc ese esi esk esl eso esr ess esu eu- euc eue eui eul eur eus icc ice ici ick icl ico icr ics icu ie- iec iee iei iek iel ier ies iic iie iii iil iio iir iis iiu ikc ike iki ikk ikl iko ikr iks iku il- ilc ile ili ilk ill ilo ilr ils ilu io- ioc ioe ioi iol ioo ior ios iou ir- irc ire iri irk irl iro irr irs iru is- isc ise isi isk isl iso isr iss isu iu- iuc iue iui iur ius kcc kce kci kck kcl kcr kcs kcu ke- kec kee kei kek kel keo ker kes kic kie kii kik kil kio kir kis kiu kkc kke kki kkk kkl kkr kks kku kl- klc kli klo klr kls klu koc koe koi kok kol koo kor kos kou krc kri krk krl kro krr krs kru ksc kse ksi ksk ksl kso ksr kss ksu kuc kue kui kuk kul kur kus kuu lcc lce lci lck lcl lco lcr lcs lcu lec lee lei lek lel leo ler les leu lic lie lii lik lil lio lir lis liu lkl lkr lks llc lle lli llk lll llo llr lls llu loc loe loi lok lol loo lor los lou lrc lri lrk lro lrr lrs lru lsc lse lsi lsk lsl lso lsr lss lsu luc lue lui luk lul luo lur lus luu o-i oc- occ oci ock ocl oco ocr ocs ocu oec oee oei oel oeo oer oes oic oie oii oik oil oio oir ois oiu okc oke oki okk okl oko okr oks oku olc ole oli olk oll olo ols olu oo- ooc ooi ook ool ooo oor oos or- orc ore ori ork orl oro orr ors oru os- osc ose osi osk osl oso osr oss osu ou- ouc oue oui ouk oul ouo our ous rcc rce rci rcl rco rcr rcs rcu re- rec ree rei rek rel reo rer res reu ric rie rii rik ril rio rir ris rkc rke rkk rko rks rku rlc rle rli rll rlo rlr rls rlu roc roe roi rok rol roo ror ros rou rrc rri rrk rrl rrr rrs rru rsc rse rsi rsk rsl rso rsr rss rsu ruc rue rui ruk ruo rur rus ruu scc sce sci sck scl sco scr scs scu se- sec see sei sek sel seo ser ses seu sic sie sii sik sil sio sir sis siu sk- skc ske ski skk skl sko skr sks sku slc sle sli slk sll slo slr sls slu soc soe soi sok sol soo sor sos sou sr- src sre sri srk srl sro srr srs ss- ssc sse ssi ssk ssl sso ssr sss ssu suc sue sui suk sul suo sur sus suu ucc uce uci uck ucl uco ucr ucs ucu uec uee uei uel uer ues uic uie uii uil uio uir uis uiu ukc uke uki ukk ukl ukr uku ulc ule uli ulk ull ulo ulr uls ulu uoc uoe uok uol uoo uor uos ur- urc ure uri urk url uro urr urs uru usc use usi usk usl uso usr uss usu uuc uue uur uus uuu