-ol c-- ccc ccl ccm cco cct cl- clc cll clm clo clt cmc cml cmm cmo cmt co- coc col com coo cot ctc ctl ctm cto ctt lcc lcl lcm lco lct llc lll llm llo llt lmc lml lmm lmo lmt loc lol lom loo lot ltc ltl ltm lto ltt m-o mc- mcc mcl mcm mco mct mlc mll mlm mlo mlt mmc mml mmm mmo mmt moc mol mom moo mot mtc mtl mtm mto mtt oc- occ ocl ocm oco oct olc oll olm olo olt om- omc oml omm omo omt oo- ooc ool oom ooo oot ot- otc otl otm oto ott tcc tcl tcm tco tct tlc tll tlm tlo tlt tmc tml tmm tmo tmt to- toc tol tom too tot ttc ttl ttm tto ttt