-er a-a a-i aaa aae aaf aag aai aan aap aar aas aea aee aef aeg aei aen aep aer aes af- afa afe aff afg afi afn afp afr afs ag- aga age agf agg agi agn agp agr ags ai- aia aie aif aig aii ain aip air ais an- ana ane anf ang ani ann anp anr ans ap- apa ape apf apg api apn app apr aps ar- ara are arf arg ari arn arp arr ars as- asa ase asf asg asi asn asp asr ass eaa eae eaf eag eai ean eap ear eas eea eee eef eeg een eep eer ees ef- efa efe eff efg efi efp efr efs ega ege egf egg egi egn egp egr egs eia eie eif eig eii ein eip eir eis en- ena ene enf eng eni enn enp enr ens ep- epa epe epf epg epi epn epp epr eps era ere erf erg eri ern erp err ers es- esa ese esf esg esi esn esp esr ess faa fae faf fag fai fan fap far fas fea fee fef feg fei fen fep fer fes ffa ffe fff ffg ffi ffn ffp ffr ffs fga fge fgf fgg fgi fgn fgp fgr fgs fia fie fif fig fii fin fip fir fis fna fne fnf fng fni fnn fnp fnr fns fpa fpe fpg fpi fpn fpp fpr fps fra fre frf frg fri frn frp frr frs fsa fse fsf fsg fsi fsn fsp fsr fss g-p gaa gae gaf gag gai gan gap gar gas ge- gea gee gef geg gei gen gep ger ges gfa gfe gff gfi gfp gfr gfs gga ggg ggi ggn ggp ggr ggs gia gie gif gig gii gin gip gir gis gna gne gnf gni gnn gnp gnr gns gpa gpe gpf gpg gpi gpn gpp gpr gps gra gre grf grg gri grn grp grr grs gsa gse gsf gsg gsi gsn gsp gsr gss i-f ia- iaa iae iaf iag iai ian iap iar ias ie- iea iee ief ieg iei ien iep ier ies ifa ife iff ifg ifi ifn ifp ifr ifs iga ige igf igg igi ign igp igr igs iia iie iif iii iin iip iir iis in- ina ine inf ing ini inn inp inr ins ipa ipe ipf ipg ipi ipn ipp ipr ips ir- ira ire irf irg iri irn irp irr irs is- isa ise isf isg isi isn isp isr iss n-i naa nae naf nag nai nan nap nar nas ne- nea nee nef neg nei nen nep ner nes nfa nfe nff nfi nfn nfp nfr nfs nga nge ngf ngg ngi ngn ngp ngs nia nie nif nig nii nin nip nir nis nna nne nnf nng nni nnn nnp nns npa npe npf npg npi npn npp npr nps nra nre nrf nrg nri nrn nrp nrr nrs nsa nse nsf nsg nsi nsn nsp nsr nss p-p paa pae paf pag pai pan pap par pas pea pee pef peg pei pen pep per pes pfa pfe pff pfg pfi pfn pfp pfr pfs pga pge pgf pgg pgi pgn pgp pgr pgs pia pie pif pig pii pin pip pir pis pn- pna pne pnf png pni pnn pnp pnr pns ppa ppe ppf ppg ppi ppn ppp ppr pps pra pre prf prg pri prn prp prr prs ps- psa pse psf psg psi psn psp psr pss ra- raa rae raf rag rai ran rap rar ras re- rea ree ref reg rei ren rep rer res rfa rfe rff rfg rfi rfn rfp rfr rfs rga rge rgf rgg rgi rgn rgp rgr rgs ria rie rif rig rii rin rip rir ris rna rng rni rnn rnp rnr rns rpa rpe rpf rpg rpi rpn rpp rpr rps rra rrf rrg rri rrn rrp rrr rrs rsa rse rsf rsg rsi rsn rsp rsr rss saa sae saf sag sai san sap sar sas se- sea see sef seg sei sen sep ser ses sfa sfe sff sfg sfi sfn sfp sfr sfs sga sge sgf sgg sgi sgn sgp sgr sgs sia sie sif sig sii sin sip sir sis sna sne snf sng sni snn snp snr sns spa spe spf spg spi spn spp spr sps sr- sra sre srf srg sri srn srp srr srs ss- ssa sse ssf ssg ssi ssn ssp ssr sss