-er -ic a-a a-c a-i aaa aac aae aaf aai aan aar aas ac- aca acc ace acf aci acn acr acs aea aec aee aef aei aen aer aes af- afa afc afe aff afi afn afr afs ai- aia aic aie aif aii ain air ais an- ana anc ane anf ani ann anr ans ar- ara arc are arf ari arn arr ars as- asa asc ase asf asi asn asr ass c-- caa cac cae caf cai can car cas cca ccc cce ccf cci ccn ccr ccs ce- cea cec cee cef cei cen cer ces cfa cfc cfe cff cfi cfn cfr cfs ci- cia cic cie cif cii cin cir cis cn- cna cnc cne cnf cni cnn cnr cns cra crc cre crf cri crn crr crs csa csc cse csf csi csn csr css eaa eac eae eaf eai ean ear eas ec- eca ecc ece ecf eci ecn ecr ecs eea eec eee eef een eer ees ef- efa efc efe eff efi efr efs eia eic eie eif eii ein eir eis en- ena enc ene enf eni enn enr ens era erc ere erf eri ern err ers es- esa esc ese esf esi esn esr ess faa fac fae faf fai fan far fas fca fcc fce fcf fci fcn fcr fcs fea fec fee fef fei fen fer fes ffa ffc ffe fff ffi ffn ffr ffs fia fic fie fif fii fin fir fis fna fnc fne fnf fni fnn fnr fns fra frc fre frf fri frn frr frs fsa fsc fse fsf fsi fsn fsr fss i-f ia- iaa iac iae iaf iai ian iar ias ica icc ice icf ici icn icr ics ie- iea iec iee ief iei ien ier ies ifa ifc ife iff ifi ifn ifr ifs iia iic iie iif iii iin iir iis in- ina inc ine inf ini inn inr ins ir- ira irc ire irf iri irn irr irs is- isa isc ise isf isi isn isr iss n-i naa nac nae naf nai nan nar nas nca ncc nce ncf nci ncn ncr ncs ne- nea nec nee nef nei nen ner nes nfa nfc nfe nff nfi nfn nfr nfs nia nic nie nif nii nin nir nis nna nnc nne nnf nni nnn nns nra nrc nre nrf nri nrn nrr nrs nsa nsc nse nsf nsi nsn nsr nss ra- raa rac rae raf rai ran rar ras rca rcc rce rcf rci rcn rcr rcs re- rea rec ree ref rei ren rer res rfa rfc rfe rff rfi rfn rfr rfs ria ric rie rif rii rin rir ris rna rnc rni rnn rnr rns rra rrc rrf rri rrn rrr rrs rsa rsc rse rsf rsi rsn rsr rss saa sac sae saf sai san sar sas sca scc sce scf sci scn scr scs se- sea sec see sef sei sen ser ses sfa sfc sfe sff sfi sfn sfr sfs sia sic sie sif sii sin sir sis sna snc sne snf sni snn snr sns sr- sra src sre srf sri srn srr srs ss- ssa ssc sse ssf ssi ssn ssr sss