-er -ic -ol c-- ccc cce ccf cci ccl cco ccr ccs ccu ce- cec cee cef cei cel ceo cer ces ceu cfc cfe cff cfi cfl cfo cfr cfs cfu ci- cic cie cif cii cil cio cir cis ciu cl- clc cle clf cli cll clo clr cls clu co- coc coe cof coi col coo cor cos cou crc cre crf cri crl cro crr crs cru csc cse csf csi csl cso csr css csu cuc cue cuf cui cul cuo cur cus cuu ec- ecc ece ecf eci ecl eco ecr ecs ecu eec eee eef eel eeo eer ees ef- efc efe eff efi efl efo efr efs eic eie eif eii eil eio eir eis eiu elc ele elf eli ell elo elr els elu eo- eoc eoe eof eoi eol eoo eor eos eou erc ere erf eri erl ero err ers eru es- esc ese esf esi esl eso esr ess esu eu- euc eue euf eui eul eur eus fcc fce fcf fci fcl fco fcr fcs fcu fec fee fef fei fel feo fer fes feu ffc ffe fff ffi ffl ffo ffr ffs ffu fic fie fif fii fil fir fis fiu flc fle flf fli fll flo flr fls flu foc foe fof foi fol foo for fos fou frc fre frf fri frl fro frr frs fru fsc fse fsf fsi fsl fso fsr fss fsu fue fuf fui ful fuo fur fus fuu i-f icc ice icf ici icl ico icr ics icu ie- iec iee ief iei iel ier ies ifc ife iff ifi ifl ifo ifr ifs ifu iic iie iif iii iil iio iir iis iiu il- ilc ile ilf ili ill ilo ilr ils ilu io- ioc ioe iof ioi iol ioo ior ios iou ir- irc ire irf iri irl iro irr irs iru is- isc ise isf isi isl iso isr iss isu iu- iuc iue iui iur ius lcc lce lcf lci lcl lco lcr lcs lcu lec lee lef lei lel leo ler les leu lfc lfe lff lfi lfl lfo lfr lfs lfu lic lie lif lii lil lio lir lis liu llc lle llf lli lll llo llr lls llu loc loe lof loi lol loo lor los lou lrc lrf lri lro lrr lrs lru lsc lse lsf lsi lsl lso lsr lss lsu luc lue luf lui lul luo lur lus luu o-i oc- occ ocf oci ocl oco ocr ocs ocu oec oee oef oei oel oeo oer oes of- ofc ofe off ofi ofl ofo ofr ofs ofu oic oie oif oii oil oio oir ois oiu olc ole olf oli oll olo ols olu oo- ooc oof ooi ool ooo oor oos or- orc ore orf ori orl oro orr ors oru os- osc ose osf osi osl oso osr oss osu ou- ouc oue ouf oui oul ouo our ous rcc rce rcf rci rcl rco rcr rcs rcu re- rec ree ref rei rel reo rer res reu rfc rfe rff rfi rfl rfo rfr rfs rfu ric rie rif rii ril rio rir ris rlc rle rlf rli rll rlo rlr rls rlu roc roe rof roi rol roo ror ros rou rrc rrf rri rrl rrr rrs rru rsc rse rsf rsi rsl rso rsr rss rsu ruc rue ruf rui ruo rur rus ruu scc sce scf sci scl sco scr scs scu se- sec see sef sei sel seo ser ses seu sfc sfe sff sfi sfl sfo sfr sfs sfu sic sie sif sii sil sio sir sis siu slc sle slf sli sll slo slr sls slu soc soe sof soi sol soo sor sos sou sr- src sre srf sri srl sro srr srs ss- ssc sse ssf ssi ssl sso ssr sss ssu suc sue suf sui sul suo sur sus suu ucc uce ucf uci ucl uco ucr ucs ucu uec uee uef uei uel uer ues ufc ufe uff ufi ufl ufo ufr ufs ufu uic uie uif uii uil uio uir uis uiu ulc ule ulf uli ull ulo ulr uls ulu uoc uoe uol uoo uor uos ur- urc ure urf uri url uro urr urs uru usc use usf usi usl uso usr uss usu uuc uue uur uus uuu