-ol c-- ccc ccf ccl ccm cco ccr cct cfc cff cfl cfm cfo cfr cft cl- clc clf cll clm clo clr clt cmc cmf cml cmm cmo cmr cmt co- coc cof col com coo cor cot crc crf crl crm cro crr crt ctc ctf ctl ctm cto ctr ctt fcc fcf fcl fcm fco fcr fct ffc fff ffl ffm ffo ffr fft flc flf fll flm flo flr flt fmc fmf fml fmm fmo fmr fmt foc fof fol fom foo for fot frc frf frl frm fro frr frt ftc ftf ftl ftm fto ftr ftt lcc lcf lcl lcm lco lcr lct lfc lff lfl lfm lfo lfr lft llc llf lll llm llo llr llt lmc lmf lml lmm lmo lmr lmt loc lof lol lom loo lor lot lrc lrf lrm lro lrr lrt ltc ltf ltl ltm lto ltr ltt m-f m-o m-r mc- mcc mcf mcl mcm mco mcr mct mfc mff mfl mfm mfo mfr mft mlc mlf mll mlm mlo mlr mlt mmc mmf mml mmm mmo mmr mmt moc mof mol mom moo mor mot mrc mrf mrl mrm mro mrr mrt mtc mtf mtl mtm mto mtr mtt oc- occ ocf ocl ocm oco ocr oct of- ofc off ofl ofm ofo ofr oft olc olf oll olm olo olt om- omc omf oml omm omo omr omt oo- ooc oof ool oom ooo oor oot or- orc orf orl orm oro orr ort ot- otc otf otl otm oto otr ott rcc rcf rcl rcm rco rcr rct rfc rff rfl rfm rfo rfr rft rlc rlf rll rlm rlo rlr rlt rmc rmf rml rmm rmo rmr rmt roc rof rol rom roo ror rot rrc rrf rrl rrm rrr rrt rtc rtf rtl rtm rto rtr rtt tcc tcf tcl tcm tco tcr tct tfc tff tfl tfm tfo tfr tft tlc tlf tll tlm tlo tlr tlt tmc tmf tml tmm tmo tmr tmt to- toc tof tol tom too tor tot trc trf trl trm tro trr trt ttc ttf ttl ttm tto ttr ttt