-ic -ol c-- ccc cci cck ccl cco ccs ci- cic cii cik cil cio cis ckc cki cko cks cl- clc cli clk cll clo cls co- coc coi cok col coo cos csc csi csk csl cso css icc ici ick icl ico ics iic iii iil iio iis ikc iki ikk ikl iko iks il- ilc ili ilk ill ilo ils io- ioc ioi iol ioo ios is- isc isi isk isl iso iss kcc kci kck kcl kcs kic kii kik kil kio kis kkc kki kkk kkl kks kl- klc kli klo kls koc koi kok kol koo kos ksc ksi ksk ksl kso kss lcc lci lck lcl lco lcs lic lii lik lil lio lis lkl lks llc lli llk lll llo lls loc loi lok lol loo los lsc lsi lsk lsl lso lss o-i oc- occ oci ock ocl oco ocs oic oii oik oil oio ois okc oki okk okl oko oks olc oli olk oll olo ols oo- ooc ooi ook ool ooo oos os- osc osi osk osl oso oss scc sci sck scl sco scs sic sii sik sil sio sis sk- skc ski skk skl sko sks slc sli slk sll slo sls soc soi sok sol soo sos ss- ssc ssi ssk ssl sso sss