-ol c-- ccc cck ccl cco ccp ccs ckc cko cks cl- clc clk cll clo clp cls co- coc cok col coo cop cos cpc cpk cpl cpo cpp cps csc csk csl cso csp css kcc kck kcl kcp kcs kkc kkk kkl kkp kks kl- klc klo kls koc kok kol koo kop kos kpc kpk kpl kpo kpp kps ksc ksk ksl kso ksp kss l-p lcc lck lcl lco lcp lcs lkl lkp lks llc llk lll llo llp lls loc lok lol loo lop los lpc lpk lpl lpo lpp lps lsc lsk lsl lso lsp lss oc- occ ock ocl oco ocp ocs okc okk okl oko okp oks olc olk oll olo olp ols oo- ooc ook ool ooo oop oos op- opc opk opl opo opp ops os- osc osk osl oso osp oss p-p pcc pck pcl pco pcp pcs pkc pkl pko pkp pks plc plk pll plo plp pls poc pok pol poo pop pos ppc ppk ppl ppo ppp pps ps- psc psk psl pso psp pss scc sck scl sco scp scs sk- skc skk skl sko skp sks slc slk sll slo slp sls soc sok sol soo sop sos spc spk spl spo spp sps ss- ssc ssk ssl sso ssp sss