-ol c-- ccc ccd cce ccl cco cdc cdd cde cdl cdo ce- cec ced cee cel ceo cl- clc cld cle cll clo co- coc cod coe col coo dcc dcd dce dcl dco ddc ddd dde ddl ddo de- dec ded dee del deo dl- dlc dld dle dll dlo doc dod doe dol doo ec- ecc ecd ece ecl eco ed- edc edd ede edl edo eec eed eee eel eeo elc eld ele ell elo eo- eoc eod eoe eol eoo lcc lcd lce lcl lco ldc ldd lde ldl ldo lec led lee lel leo llc lld lle lll llo loc lod loe lol loo oc- occ ocd ocl oco odc odd ode odl odo oec oed oee oel oeo olc old ole oll olo oo- ooc ood ool ooo