-ol c-- ccc ccd ccl cco ccp ccs cct cdc cdd cdl cdo cdp cds cdt cl- clc cld cll clo clp cls clt co- coc cod col coo cop cos cot cpc cpd cpl cpo cpp cps cpt csc csd csl cso csp css cst ctc ctd ctl cto ctp cts ctt dcc dcd dcl dco dcp dcs dct ddc ddd ddl ddo ddp dds ddt dl- dlc dld dll dlo dlp dls dlt doc dod dol doo dop dos dot dpc dpd dpl dpo dpp dps dpt dsc dsd dsl dso dsp dss dst dtc dtd dtl dto dtp dts dtt l-p lcc lcd lcl lco lcp lcs lct ldc ldd ldl ldo ldp lds ldt llc lld lll llo llp lls llt loc lod lol loo lop los lot lpc lpd lpl lpo lpp lps lpt lsc lsd lsl lso lsp lss lst ltc ltd ltl lto ltp lts ltt oc- occ ocd ocl oco ocp ocs oct odc odd odl odo odp ods odt olc old oll olo olp ols olt oo- ooc ood ool ooo oop oos oot op- opc opd opl opo opp ops opt os- osc osd osl oso osp oss ost ot- otc otd otl oto otp ots ott p-p pcc pcd pcl pco pcp pcs pct pdc pdd pdl pdo pdp pds pdt plc pld pll plo plp pls plt poc pod pol poo pop pos pot ppc ppd ppl ppo ppp pps ppt ps- psc psd psl pso psp pss pst pt- ptc ptd ptl pto ptp pts ptt scc scd scl sco scp scs sct sdc sdd sdl sdo sdp sds sdt slc sld sll slo slp sls slt soc sod sol soo sop sos sot spc spd spl spo spp sps spt ss- ssc ssd ssl sso ssp sss sst stc std stl sto stp sts stt tcc tcd tcl tco tcp tcs tct tdc tdd tdl tdo tdp tds tdt tlc tld tll tlo tlp tls tlt to- toc tod tol too top tos tot tpc tpd tpl tpo tpp tps tpt tsc tsd tsl tso tsp tss tst ttc ttd ttl tto ttp tts ttt