-ol c-- ccc cce ccl cco cct ce- cec cee cel ceo cet cl- clc cle cll clo clt co- coc coe col coo cot ctc cte ctl cto ctt ec- ecc ece ecl eco ect eec eee eel eeo eet elc ele ell elo elt eo- eoc eoe eol eoo eot etc ete etl eto ett lcc lce lcl lco lct lec lee lel leo let llc lle lll llo llt loc loe lol loo lot ltc lte ltl lto ltt oc- occ ocl oco oct oec oee oel oeo oet olc ole oll olo olt oo- ooc ool ooo oot ot- otc ote otl oto ott tcc tce tcl tco tct te- tec tee tel teo tet tlc tle tll tlo tlt to- toc toe tol too tot ttc tte ttl tto ttt