-ol c-- ccc cce ccl ccn cco ce- cec cee cel cen ceo cl- clc cle cll cln clo cn- cnc cne cnl cnn cno co- coc coe col con coo ec- ecc ece ecl ecn eco eec eee eel een eeo elc ele ell eln elo en- enc ene enl enn eno eo- eoc eoe eol eon eoo lcc lce lcl lcn lco lec lee lel len leo llc lle lll lln llo lnc lne lnl lnn lno loc loe lol lon loo ncc nce ncl ncn nco ne- nec nee nel nen neo nlc nle nll nln nlo nnc nne nnl nnn nno no- noc noe nol non noo oc- occ ocl ocn oco oec oee oel oen oeo olc ole oll oln olo on- onc one onl onn ono oo- ooc ool oon ooo