-ol c-- ccc cce ccl cco ccs cct ce- cec cee cel ceo ceq ces cet cl- clc cle cll clo cls clt co- coc coe col coo coq cos cot cqc cql cqo cqs cqt csc cse csl cso csq css cst ctc cte ctl cto ctq cts ctt ec- ecc ece ecl eco ecq ecs ect eec eee eel eeo ees eet elc ele ell elo els elt eo- eoc eoe eol eoo eoq eos eot eqe eqq eqs eqt es- esc ese esl eso esq ess est etc ete etl eto ets ett lcc lce lcl lco lcq lcs lct lec lee lel leo leq les let llc lle lll llo llq lls llt loc loe lol loo loq los lot lsc lse lsl lso lsq lss lst ltc lte ltl lto lts ltt oc- occ ocl oco ocs oct oec oee oel oeo oes oet olc ole oll olo ols olt oo- ooc ool ooo oos oot oqo os- osc ose osl oso osq oss ost ot- otc ote otl oto ots ott qcc qcl qco qcs qct qec qee qeo qet qls qoo qos qqq qsc qsl qso qst qtc qto qtq qts scc sce scl sco scs sct se- sec see sel seo seq ses set slc sle sll slo slq sls slt soc soe sol soo soq sos sot sql sqq sqs ss- ssc sse ssl sso ssq sss sst stc ste stl sto stq sts stt tcc tce tcl tco tcs tct te- tec tee tel teo teq tes tet tlc tle tll tlo tls tlt to- toc toe tol too toq tos tot tqo tsc tse tsl tso tsq tss tst ttc tte ttl tto tts ttt