-ol c-- ccc ccl cco ccp ccr ccs cl- clc cll clo clp clr cls co- coc col coo cop cor cos cpc cpl cpo cpp cpr cps crc crl cro crp crr crs csc csl cso csp csr css l-p lcc lcl lco lcp lcr lcs llc lll llo llp llr lls loc lol loo lop lor los lpc lpl lpo lpp lpr lps lrc lro lrp lrr lrs lsc lsl lso lsp lsr lss oc- occ ocl oco ocp ocr ocs olc oll olo olp ols oo- ooc ool ooo oop oor oos op- opc opl opo opp opr ops or- orc orl oro orp orr ors os- osc osl oso osp osr oss p-p pcc pcl pco pcp pcr pcs plc pll plo plp plr pls poc pol poo pop por pos ppc ppl ppo ppp ppr pps prc prl pro prp prr prs ps- psc psl pso psp psr pss rcc rcl rco rcp rcr rcs rlc rll rlo rlp rlr rls roc rol roo rop ror ros rpc rpl rpo rpp rpr rps rrc rrl rrp rrr rrs rsc rsl rso rsp rsr rss scc scl sco scp scr scs slc sll slo slp slr sls soc sol soo sop sor sos spc spl spo spp spr sps sr- src srl sro srp srr srs ss- ssc ssl sso ssp ssr sss