-ol c-- ccc ccl cco ccs cct ccu cl- clc cll clo cls clt clu co- coc col coo cos cot cou csc csl cso css cst csu ctc ctl cto cts ctt ctu cuc cul cuo cus cut cuu lcc lcl lco lcs lct lcu llc lll llo lls llt llu loc lol loo los lot lou lsc lsl lso lss lst lsu ltc ltl lto lts ltt ltu luc lul luo lus lut luu oc- occ ocl oco ocs oct ocu olc oll olo ols olt olu oo- ooc ool ooo oos oot os- osc osl oso oss ost osu ot- otc otl oto ots ott otu ou- ouc oul ouo ous out scc scl sco scs sct scu slc sll slo sls slt slu soc sol soo sos sot sou ss- ssc ssl sso sss sst ssu stc stl sto sts stt stu suc sul suo sus sut suu tcc tcl tco tcs tct tcu tlc tll tlo tls tlt tlu to- toc tol too tos tot tou tsc tsl tso tss tst tsu ttc ttl tto tts ttt ttu tuc tul tuo tus tut tuu ucc ucl uco ucs uct ucu ulc ull ulo uls ult ulu uoc uol uoo uos uot usc usl uso uss ust usu utc utl uto uts utt utu uuc uus uut uuu