-ol c-- ccc ccl cco ccp ccs cl- clc cll clo clp cls co- coc col coo cop cos cpc cpl cpo cpp cps csc csl cso csp css l-p lcc lcl lco lcp lcs llc lll llo llp lls loc lol loo lop los lpc lpl lpo lpp lps lsc lsl lso lsp lss oc- occ ocl oco ocp ocs olc oll olo olp ols oo- ooc ool ooo oop oos op- opc opl opo opp ops os- osc osl oso osp oss p-p pcc pcl pco pcp pcs plc pll plo plp pls poc pol poo pop pos ppc ppl ppo ppp pps ps- psc psl pso psp pss scc scl sco scp scs slc sll slo slp sls soc sol soo sop sos spc spl spo spp sps ss- ssc ssl sso ssp sss