-ol c-- ccc cce ccl cco ccp cct ce- cec cee cel ceo cep cet cl- clc cle cll clo clp clt co- coc coe col coo cop cot cpc cpe cpl cpo cpp cpt ctc cte ctl cto ctp ctt ec- ecc ece ecl eco ect eec eee eel eeo eep eet elc ele ell elo elp elt eo- eoc eoe eol eoo eop eot ep- epc epe epl epo epp ept etc ete etl eto etp ett l-p lcc lce lcl lco lcp lct lec lee lel leo lep let llc lle lll llo llp llt loc loe lol loo lop lot lpc lpe lpl lpo lpp lpt ltc lte ltl lto ltp ltt oc- occ ocl oco ocp oct oec oee oel oeo oep oet olc ole oll olo olp olt oo- ooc ool ooo oop oot op- opc ope opl opo opp opt ot- otc ote otl oto otp ott p-p pcc pce pcl pco pcp pct pec pee pel peo pep pet plc ple pll plo plp plt poc poe pol poo pop pot ppc ppe ppl ppo ppp ppt pt- ptc pte ptl pto ptp ptt tcc tce tcl tco tcp tct te- tec tee tel teo tep tet tlc tle tll tlo tlp tlt to- toc toe tol too top tot tpc tpe tpl tpo tpp tpt ttc tte ttl tto ttp ttt