-ol c-- ccc ccl cco cct ccu cl- clc cll clo clt clu co- coc col coo cot cou ctc ctl cto ctt ctu cuc cul cuo cut cuu lcc lcl lco lct lcu llc lll llo llt llu loc lol loo lot lou ltc ltl lto ltt ltu luc lul luo lut luu oc- occ ocl oco oct ocu olc oll olo olt olu oo- ooc ool ooo oot ot- otc otl oto ott otu ou- ouc oul ouo out tcc tcl tco tct tcu tlc tll tlo tlt tlu to- toc tol too tot tou ttc ttl tto ttt ttu tuc tul tuo tut tuu ucc ucl uco uct ucu ulc ull ulo ult ulu uoc uol uoo uot utc utl uto utt utu uuc uut uuu