-er a-a a-i aaa aae aaf aai aan aap aar aas aea aee aef aei aen aep aer aes af- afa afe aff afi afn afp afr afs ai- aia aie aif aii ain aip air ais an- ana ane anf ani ann anp anr ans ap- apa ape apf api apn app apr aps ar- ara are arf ari arn arp arr ars as- asa ase asf asi asn asp asr ass eaa eae eaf eai ean eap ear eas eea eee eef een eep eer ees ef- efa efe eff efi efp efr efs eia eie eif eii ein eip eir eis en- ena ene enf eni enn enp enr ens ep- epa epe epf epi epn epp epr eps era ere erf eri ern erp err ers es- esa ese esf esi esn esp esr ess faa fae faf fai fan fap far fas fea fee fef fei fen fep fer fes ffa ffe fff ffi ffn ffp ffr ffs fia fie fif fii fin fip fir fis fna fne fnf fni fnn fnp fnr fns fpa fpe fpi fpn fpp fpr fps fra fre frf fri frn frp frr frs fsa fse fsf fsi fsn fsp fsr fss i-f ia- iaa iae iaf iai ian iap iar ias ie- iea iee ief iei ien iep ier ies ifa ife iff ifi ifn ifp ifr ifs iia iie iif iii iin iip iir iis in- ina ine inf ini inn inp inr ins ipa ipe ipf ipi ipn ipp ipr ips ir- ira ire irf iri irn irp irr irs is- isa ise isf isi isn isp isr iss n-i naa nae naf nai nan nap nar nas ne- nea nee nef nei nen nep ner nes nfa nfe nff nfi nfn nfp nfr nfs nia nie nif nii nin nip nir nis nna nne nnf nni nnn nnp nns npa npe npf npi npn npp npr nps nra nre nrf nri nrn nrp nrr nrs nsa nse nsf nsi nsn nsp nsr nss p-p paa pae paf pai pan pap par pas pea pee pef pei pen pep per pes pfa pfe pff pfi pfn pfp pfr pfs pia pie pif pii pin pip pir pis pn- pna pne pnf pni pnn pnp pnr pns ppa ppe ppf ppi ppn ppp ppr pps pra pre prf pri prn prp prr prs ps- psa pse psf psi psn psp psr pss ra- raa rae raf rai ran rap rar ras re- rea ree ref rei ren rep rer res rfa rfe rff rfi rfn rfp rfr rfs ria rie rif rii rin rip rir ris rna rni rnn rnp rnr rns rpa rpe rpf rpi rpn rpp rpr rps rra rrf rri rrn rrp rrr rrs rsa rse rsf rsi rsn rsp rsr rss saa sae saf sai san sap sar sas se- sea see sef sei sen sep ser ses sfa sfe sff sfi sfn sfp sfr sfs sia sie sif sii sin sip sir sis sna sne snf sni snn snp snr sns spa spe spf spi spn spp spr sps sr- sra sre srf sri srn srp srr srs ss- ssa sse ssf ssi ssn ssp ssr sss