-er -ol c-- ccc cce ccf ccg ccl cco ccr ccs ccu ce- cec cee cef ceg cel ceo cer ces ceu cfc cfe cff cfg cfl cfo cfr cfs cfu cgc cge cgg cgl cgo cgr cgs cgu cl- clc cle clf clg cll clo clr cls clu co- coc coe cof cog col coo cor cos cou crc cre crf crg crl cro crr crs cru csc cse csf csg csl cso csr css csu cuc cue cuf cug cul cuo cur cus cuu ec- ecc ece ecf ecg ecl eco ecr ecs ecu eec eee eef eeg eel eeo eer ees ef- efc efe eff efg efl efo efr efs egc ege egf egg egl ego egr egs egu elc ele elf elg ell elo elr els elu eo- eoc eoe eof eog eol eoo eor eos eou erc ere erf erg erl ero err ers eru es- esc ese esf esg esl eso esr ess esu eu- euc eue euf eug eul eur eus fcc fce fcf fcg fcl fco fcr fcs fcu fec fee fef feg fel feo fer fes feu ffc ffe fff ffg ffl ffo ffr ffs ffu fgc fge fgf fgg fgl fgr fgs flc fle flf flg fll flo flr fls flu foc foe fof fog fol foo for fos fou frc fre frf frg frl fro frr frs fru fsc fse fsf fsg fsl fso fsr fss fsu fue fuf fug ful fuo fur fus fuu gcc gce gcf gcg gcl gco gcr gcs gcu ge- gec gee gef geg gel geo ger ges geu gfc gfe gff gfl gfo gfr gfs ggc ggg ggo ggr ggs ggu glc gle glf glg gll glo glr gls glu goc goe gof gog gol goo gor gos gou grc gre grf grg grl gro grr grs gru gsc gse gsf gsg gsl gso gsr gss gsu gu- guc gue guf gug gul guo gur gus guu lcc lce lcf lcg lcl lco lcr lcs lcu lec lee lef leg lel leo ler les leu lfc lfe lff lfg lfl lfo lfr lfs lfu lgc lge lgf lgg lgl lgo lgr lgs lgu llc lle llf llg lll llo llr lls llu loc loe lof log lol loo lor los lou lrc lrf lrg lro lrr lrs lru lsc lse lsf lsg lsl lso lsr lss lsu luc lue luf lug lul luo lur lus luu oc- occ ocf ocg ocl oco ocr ocs ocu oec oee oef oeg oel oeo oer oes of- ofc ofe off ofg ofl ofo ofr ofs ofu ogc oge ogf ogg ogl ogo ogs olc ole olf olg oll olo ols olu oo- ooc oof oog ool ooo oor oos or- orc ore orf org orl oro orr ors oru os- osc ose osf osg osl oso osr oss osu ou- ouc oue ouf oul ouo our ous rcc rce rcf rcg rcl rco rcr rcs rcu re- rec ree ref reg rel reo rer res reu rfc rfe rff rfg rfl rfo rfr rfs rfu rgc rge rgf rgg rgo rgr rgs rlc rle rlf rlg rll rlo rlr rls rlu roc roe rof rog rol roo ror ros rou rrc rrf rrg rrl rrr rrs rru rsc rse rsf rsg rsl rso rsr rss rsu ruc rue ruf rug ruo rur rus ruu scc sce scf scg scl sco scr scs scu se- sec see sef seg sel seo ser ses seu sfc sfe sff sfg sfl sfo sfr sfs sfu sgc sge sgf sgg sgl sgo sgr sgs sgu slc sle slf slg sll slo slr sls slu soc soe sof sog sol soo sor sos sou sr- src sre srf srg srl sro srr srs ss- ssc sse ssf ssg ssl sso ssr sss ssu suc sue suf sug sul suo sur sus suu ucc uce ucf ucg ucl uco ucr ucs ucu uec uee uef ueg uel uer ues ufc ufe uff ufg ufl ufo ufr ufs ufu ugc uge ugf ugg ugl ugo ugr ugs ugu ulc ule ulf ulg ull ulo ulr uls ulu uoc uoe uog uol uoo uor uos ur- urc ure urf urg url uro urr urs uru usc use usf usg usl uso usr uss usu uuc uue uug uur uus uuu