-er -ic a-a a-c a-i aaa aac aae aag aai aak aan aar aas ac- aca acc ace acg aci ack acn acr acs aea aec aee aeg aei aek aen aer aes ag- aga agc age agg agi agk agn agr ags ai- aia aic aie aig aii aik ain air ais aka akc ake akg aki akk akn akr aks an- ana anc ane ang ani ank ann anr ans ar- ara arc are arg ari ark arn arr ars as- asa asc ase asg asi ask asn asr ass c-- caa cac cae cag cai cak can car cas cca ccc cce ccg cci cck ccn ccr ccs ce- cea cec cee ceg cei cek cen cer ces cga cgc cge cgg cgi cgn cgr cgs ci- cia cic cie cig cii cik cin cir cis cka ckc cki cks cn- cna cnc cne cng cni cnn cnr cns cra crc cre crg cri crk crn crr crs csa csc cse csg csi csk csn csr css eaa eac eae eag eai eak ean ear eas ec- eca ecc ece ecg eci eck ecn ecr ecs eea eec eee eeg eek een eer ees ega egc ege egg egi egn egr egs eia eic eie eig eii eik ein eir eis eka ekc eke ekg eki ekr eks en- ena enc ene eng eni enk enn enr ens era erc ere erg eri erk ern err ers es- esa esc ese esg esi esk esn esr ess gaa gac gae gag gai gak gan gar gas gca gcc gce gcg gci gck gcn gcr gcs ge- gea gec gee geg gei gek gen ger ges gga ggc ggg ggi ggn ggr ggs gia gic gie gig gii gik gin gir gis gka gkn gks gna gnc gne gni gnn gnr gns gra grc gre grg gri grk grn grr grs gsa gsc gse gsg gsi gsk gsn gsr gss ia- iaa iac iae iag iai ian iar ias ica icc ice icg ici ick icn icr ics ie- iea iec iee ieg iei iek ien ier ies iga igc ige igg igi igk ign igr igs iia iic iie iii iin iir iis ika ikc ike iki ikk ikr iks in- ina inc ine ing ini ink inn inr ins ir- ira irc ire irg iri irk irn irr irs is- isa isc ise isg isi isk isn isr iss ka- kaa kac kae kag kai kak kan kar kas kca kcc kce kcg kci kck kcn kcr kcs ke- kea kec kee keg kei kek ken ker kes kga kgc kgi kgs kia kic kie kig kii kik kin kir kis kkc kke kki kkk kkn kkr kks kn- kna knc kne kng kni knk knn knr kra krc krg kri krk krn krr krs ksa ksc kse ksg ksi ksk ksn ksr kss n-i naa nac nae nag nai nak nan nar nas nca ncc nce ncg nci nck ncn ncr ncs ne- nea nec nee neg nei nek nen ner nes nga ngc nge ngg ngi ngk ngn ngs nia nic nie nig nii nik nin nir nis nka nkc nke nki nkk nkn nkr nks nna nnc nne nng nni nnk nnn nns nra nrc nre nrg nri nrk nrn nrr nrs nsa nsc nse nsg nsi nsk nsn nsr nss ra- raa rac rae rag rai rak ran rar ras rca rcc rce rcg rci rcn rcr rcs re- rea rec ree reg rei rek ren rer res rga rgc rge rgg rgi rgk rgn rgr rgs ria ric rie rig rii rik rin rir ris rkc rke rkg rkk rks rna rnc rng rni rnn rnr rns rra rrc rrg rri rrk rrn rrr rrs rsa rsc rse rsg rsi rsk rsn rsr rss saa sac sae sag sai sak san sar sas sca scc sce scg sci sck scn scr scs se- sea sec see seg sei sek sen ser ses sga sgc sge sgg sgi sgk sgn sgr sgs sia sic sie sig sii sik sin sir sis sk- ska skc ske skg ski skk skr sks sna snc sne sng sni snk snn snr sns sr- sra src sre srg sri srk srn srr srs ss- ssa ssc sse ssg ssi ssk ssn ssr sss