-er a-a a-i aaa aae aag aai aan aao aap aar aas aea aee aeg aei aen aeo aep aer aes ag- aga age agg agi agn ago agp agr ags ai- aia aie aig aii ain aio aip air ais an- ana ane ang ani ann ano anp anr ans aoa aoe aog aoi aon aoo aop aor aos ap- apa ape apg api apn apo app apr aps ar- ara are arg ari arn aro arp arr ars as- asa ase asg asi asn aso asp asr ass eaa eae eag eai ean eao eap ear eas eea eee eeg een eeo eep eer ees ega ege egg egi egn ego egp egr egs eia eie eig eii ein eio eip eir eis en- ena ene eng eni enn eno enp enr ens eo- eoa eoe eog eoi eon eoo eop eor eos ep- epa epe epg epi epn epo epp epr eps era ere erg eri ern ero erp err ers es- esa ese esg esi esn eso esp esr ess g-p gaa gae gag gai gan gao gap gar gas ge- gea gee geg gei gen geo gep ger ges gga ggg ggi ggn ggo ggp ggr ggs gia gie gig gii gin gio gip gir gis gna gne gni gnn gno gnp gnr gns goa goe gog goi gon goo gop gor gos gpa gpe gpg gpi gpn gpo gpp gpr gps gra gre grg gri grn gro grp grr grs gsa gse gsg gsi gsn gso gsp gsr gss ia- iaa iae iag iai ian iao iap iar ias ie- iea iee ieg iei ien iep ier ies iga ige igg igi ign igo igp igr igs iia iie iii iin iio iip iir iis in- ina ine ing ini inn ino inp inr ins io- ioa ioe iog ioi ion ioo iop ior ios ipa ipe ipg ipi ipn ipo ipp ipr ips ir- ira ire irg iri irn iro irp irr irs is- isa ise isg isi isn iso isp isr iss n-i naa nae nag nai nan nao nap nar nas ne- nea nee neg nei nen neo nep ner nes nga nge ngg ngi ngn ngo ngp ngs nia nie nig nii nin nio nip nir nis nna nne nng nni nnn nno nnp nns no- noa noe nog noi non noo nop nor nos npa npe npg npi npn npo npp npr nps nra nre nrg nri nrn nro nrp nrr nrs nsa nse nsg nsi nsn nso nsp nsr nss o-i oaa oae oag oai oan oao oap oar oas oea oee oeg oei oen oeo oep oer oes oga oge ogg ogi ogn ogo ogp ogs oia oie oii oin oio oip oir ois on- ona one ong oni onn ono onp onr ons oo- ooa oog ooi oon ooo oop oor oos op- opa ope opg opi opn opo opp opr ops or- ora ore org ori orn oro orp orr ors os- osa ose osg osi osn oso osp osr oss p-p paa pae pag pai pan pao pap par pas pea pee peg pei pen peo pep per pes pga pge pgg pgi pgn pgo pgp pgr pgs pia pie pig pii pin pio pip pir pis pn- pna pne png pni pnn pno pnp pnr pns poa poe pog poi pon poo pop por pos ppa ppe ppg ppi ppn ppo ppp ppr pps pra pre prg pri prn pro prp prr prs ps- psa pse psg psi psn pso psp psr pss ra- raa rae rag rai ran rao rap rar ras re- rea ree reg rei ren reo rep rer res rga rge rgg rgi rgn rgo rgp rgr rgs ria rie rig rii rin rio rip rir ris rna rng rni rnn rno rnp rnr rns roa roe rog roi ron roo rop ror ros rpa rpe rpg rpi rpn rpo rpp rpr rps rra rrg rri rrn rrp rrr rrs rsa rse rsg rsi rsn rso rsp rsr rss saa sae sag sai san sao sap sar sas se- sea see seg sei sen seo sep ser ses sga sge sgg sgi sgn sgo sgp sgr sgs sia sie sig sii sin sio sip sir sis sna sne sng sni snn sno snp snr sns soa soe sog soi son soo sop sor sos spa spe spg spi spn spo spp spr sps sr- sra sre srg sri srn sro srp srr srs ss- ssa sse ssg ssi ssn sso ssp ssr sss