-er -ic c-- ccc cce ccf cci ccn cco ccr ccs cct ce- cec cee cef cei cen ceo cer ces cet cfc cfe cff cfi cfn cfo cfr cfs cft ci- cic cie cif cii cin cio cir cis cit cn- cnc cne cnf cni cnn cno cnr cns cnt co- coc coe cof coi con coo cor cos cot crc cre crf cri crn cro crr crs crt csc cse csf csi csn cso csr css cst ctc cte ctf cti ctn cto ctr cts ctt ec- ecc ece ecf eci ecn eco ecr ecs ect eec eee eef een eeo eer ees eet ef- efc efe eff efi efo efr efs eft eic eie eif eii ein eio eir eis eit en- enc ene enf eni enn eno enr ens ent eo- eoc eoe eof eoi eon eoo eor eos eot erc ere erf eri ern ero err ers ert es- esc ese esf esi esn eso esr ess est etc ete etf eti etn eto etr ets ett fcc fce fcf fci fcn fco fcr fcs fct fec fee fef fei fen feo fer fes fet ffc ffe fff ffi ffn ffo ffr ffs fft fic fie fif fii fin fir fis fit fnc fne fnf fni fnn fnr fns fnt foc foe fof foi fon foo for fos fot frc fre frf fri frn fro frr frs frt fsc fse fsf fsi fsn fso fsr fss fst ftc fte ftf fti ftn fto ftr fts ftt i-f icc ice icf ici icn ico icr ics ict ie- iec iee ief iei ien ier ies iet ifc ife iff ifi ifn ifo ifr ifs ift iic iie iif iii iin iio iir iis iit in- inc ine inf ini inn ino inr ins int io- ioc ioe iof ioi ion ioo ior ios iot ir- irc ire irf iri irn iro irr irs irt is- isc ise isf isi isn iso isr iss ist itc ite itf iti itn ito its itt n-i ncc nce ncf nci ncn nco ncr ncs nct ne- nec nee nef nei nen neo ner nes net nfc nfe nff nfi nfn nfo nfr nfs nft nic nie nif nii nin nio nir nis nit nnc nne nnf nni nnn nno nns nnt no- noc noe nof noi non noo nor nos not nrc nre nrf nri nrn nro nrr nrs nrt nsc nse nsf nsi nsn nso nsr nss nst ntc nte ntf nti ntn nto ntr nts ntt o-i oc- occ ocf oci ocn oco ocr ocs oct oec oee oef oei oen oeo oer oes oet of- ofc ofe off ofi ofn ofo ofr ofs oft oic oie oif oii oin oio oir ois oit on- onc one onf oni onn ono onr ons ont oo- ooc oof ooi oon ooo oor oos oot or- orc ore orf ori orn oro orr ors ort os- osc ose osf osi osn oso osr oss ost ot- otc ote otf oti otn oto otr ots ott rcc rce rcf rci rcn rco rcr rcs rct re- rec ree ref rei ren reo rer res ret rfc rfe rff rfi rfn rfo rfr rfs rft ric rie rif rii rin rio rir ris rit rnc rni rnn rno rnr rns rnt roc roe rof roi ron roo ror ros rot rrc rrf rri rrn rrr rrs rrt rsc rse rsf rsi rsn rso rsr rss rst rtc rte rtf rti rtn rto rtr rts rtt scc sce scf sci scn sco scr scs sct se- sec see sef sei sen seo ser ses set sfc sfe sff sfi sfn sfo sfr sfs sft sic sie sif sii sin sio sir sis sit snc sne snf sni snn sno snr sns snt soc soe sof soi son soo sor sos sot sr- src sre srf sri srn sro srr srs srt ss- ssc sse ssf ssi ssn sso ssr sss sst stc ste stf sti stn sto str sts stt tcc tce tcf tci tcn tco tcr tcs tct te- tec tee tef tei ten teo ter tes tet tfc tfe tff tfi tfn tfo tfr tfs tft tic tie tif tii tin tio tir tis tit tnc tne tnf tni tnn tno tnr tns tnt to- toc toe tof toi ton too tor tos tot trc tre trf tri trn tro trr trs trt tsc tse tsf tsi tsn tso tsr tss tst ttc tte ttf tti ttn tto ttr tts ttt