-ol c-- ccc cck ccl cco ccp ccs cct ckc cko cks ckt cl- clc clk cll clo clp cls clt co- coc cok col coo cop cos cot cpc cpk cpl cpo cpp cps cpt csc csk csl cso csp css cst ctc ctk ctl cto ctp cts ctt k-t kcc kck kcl kcp kcs kct kkc kkk kkl kkp kks kkt kl- klc klo kls klt koc kok kol koo kop kos kot kpc kpk kpl kpo kpp kps kpt ksc ksk ksl kso ksp kss kst ktc ktk ktl kto ktp kts ktt l-p lcc lck lcl lco lcp lcs lct lkl lkp lks lkt llc llk lll llo llp lls llt loc lok lol loo lop los lot lpc lpk lpl lpo lpp lps lpt lsc lsk lsl lso lsp lss lst ltc ltk ltl lto ltp lts ltt oc- occ ock ocl oco ocp ocs oct okc okk okl oko okp oks olc olk oll olo olp ols olt oo- ooc ook ool ooo oop oos oot op- opc opk opl opo opp ops opt os- osc osk osl oso osp oss ost ot- otc otk otl oto otp ots ott p-p pcc pck pcl pco pcp pcs pct pkc pkl pko pkp pks pkt plc plk pll plo plp pls plt poc pok pol poo pop pos pot ppc ppk ppl ppo ppp pps ppt ps- psc psk psl pso psp pss pst pt- ptc ptk ptl pto ptp pts ptt scc sck scl sco scp scs sct sk- skc skk skl sko skp sks skt slc slk sll slo slp sls slt soc sok sol soo sop sos sot spc spk spl spo spp sps spt ss- ssc ssk ssl sso ssp sss sst stc stk stl sto stp sts stt tcc tck tcl tco tcp tcs tct tkc tkk tkl tko tkp tks tkt tlc tlk tll tlo tlp tls tlt to- toc tok tol too top tos tot tpc tpk tpl tpo tpp tps tpt tsc tsk tsl tso tsp tss tst ttc ttk ttl tto ttp tts ttt