-ol c-- ccc ccf ccg ccl cco ccr ccs cfc cff cfg cfl cfo cfr cfs cgc cgg cgl cgo cgr cgs cl- clc clf clg cll clo clr cls co- coc cof cog col coo cor cos crc crf crg crl cro crr crs csc csf csg csl cso csr css fcc fcf fcg fcl fco fcr fcs ffc fff ffg ffl ffo ffr ffs fgc fgf fgg fgl fgr fgs flc flf flg fll flo flr fls foc fof fog fol foo for fos frc frf frg frl fro frr frs fsc fsf fsg fsl fso fsr fss gcc gcf gcg gcl gco gcr gcs gfc gff gfl gfo gfr gfs ggc ggg ggo ggr ggs glc glf glg gll glo glr gls goc gof gog gol goo gor gos grc grf grg grl gro grr grs gsc gsf gsg gsl gso gsr gss lcc lcf lcg lcl lco lcr lcs lfc lff lfg lfl lfo lfr lfs lgc lgf lgg lgl lgo lgr lgs llc llf llg lll llo llr lls loc lof log lol loo lor los lrc lrf lrg lro lrr lrs lsc lsf lsg lsl lso lsr lss oc- occ ocf ocg ocl oco ocr ocs of- ofc off ofg ofl ofo ofr ofs ogc ogf ogg ogl ogo ogs olc olf olg oll olo ols oo- ooc oof oog ool ooo oor oos or- orc orf org orl oro orr ors os- osc osf osg osl oso osr oss rcc rcf rcg rcl rco rcr rcs rfc rff rfg rfl rfo rfr rfs rgc rgf rgg rgo rgr rgs rlc rlf rlg rll rlo rlr rls roc rof rog rol roo ror ros rrc rrf rrg rrl rrr rrs rsc rsf rsg rsl rso rsr rss scc scf scg scl sco scr scs sfc sff sfg sfl sfo sfr sfs sgc sgf sgg sgl sgo sgr sgs slc slf slg sll slo slr sls soc sof sog sol soo sor sos sr- src srf srg srl sro srr srs ss- ssc ssf ssg ssl sso ssr sss