-er a-a a-c aaa aac aae aaj aan aar aas ac- aca acc ace acj acn acr acs aea aec aee aej aen aer aes aja ajc aje ajj ajn ajr ajs an- ana anc ane anj ann anr ans ar- ara arc are arj arn arr ars as- asa asc ase asj asn asr ass c-- c-j caa cac cae caj can car cas cca ccc cce ccj ccn ccr ccs ce- cea cec cee cej cen cer ces cja cjc cjr cjs cn- cna cnc cne cnj cnn cnr cns cra crc cre crj crn crr crs csa csc cse csj csn csr css eaa eac eae eaj ean ear eas ec- eca ecc ece ecj ecn ecr ecs eea eec eee een eer ees eja ejc en- ena enc ene enn enr ens era erc ere ern err ers es- esa esc ese esn esr ess jaa jac jae jaj jan jar jas jca jcc jce jcr jcs jea jec jee jej jen jer jes jja jjc jjj jjr jjs jna jnc jne jnj jnn jnr jns jra jrc jrn jrr jrs jsa jsc jse jsj jsn jsr jss naa nac nae naj nan nar nas nca ncc nce ncn ncr ncs ne- nea nec nee nej nen ner nes nja njc nje njn njs nna nnc nne nnn nns nra nrc nre nrj nrn nrr nrs nsa nsc nse nsn nsr nss ra- raa rac rae raj ran rar ras rca rcc rce rcj rcn rcr rcs re- rea rec ree ren rer res rja rjc rjr rna rnc rnn rnr rns rra rrc rrn rrr rrs rsa rsc rse rsj rsn rsr rss saa sac sae saj san sar sas sca scc sce scj scn scr scs se- sea sec see sej sen ser ses sja sjc sje sjj sjr sjs sna snc sne snj snn snr sns sr- sra src sre srj srn srr srs ss- ssa ssc sse ssj ssn ssr sss