-er a-a a-c aaa aac aae aaj aan aao aar aas ac- aca acc ace acj acn aco acr acs aea aec aee aej aen aeo aer aes aja ajc aje ajj ajn ajo ajr ajs an- ana anc ane anj ann ano anr ans aoa aoc aoe aoj aon aoo aor aos ar- ara arc are arj arn aro arr ars as- asa asc ase asj asn aso asr ass c-- c-j caa cac cae caj can cao car cas cca ccc cce ccj ccn cco ccr ccs ce- cea cec cee cej cen ceo cer ces cja cjc cjr cjs cn- cna cnc cne cnj cnn cno cnr cns co- coa coc coe coj con coo cor cos cra crc cre crj crn cro crr crs csa csc cse csj csn cso csr css eaa eac eae eaj ean eao ear eas ec- eca ecc ece ecj ecn eco ecr ecs eea eec eee een eeo eer ees eja ejc ejo en- ena enc ene enn eno enr ens eo- eoa eoc eoe eon eoo eor eos era erc ere ern ero err ers es- esa esc ese esn eso esr ess jaa jac jae jaj jan jao jar jas jca jcc jce jco jcr jcs jea jec jee jej jen jeo jer jes jja jjc jjj jjr jjs jna jnc jne jnj jnn jno jnr jns joa joc joe joj jon joo jor jos jra jrc jrn jro jrr jrs jsa jsc jse jsj jsn jso jsr jss naa nac nae naj nan nao nar nas nca ncc nce ncn nco ncr ncs ne- nea nec nee nej nen neo ner nes nja njc nje njn njs nna nnc nne nnn nno nns no- noa noc noe noj non noo nor nos nra nrc nre nrj nrn nro nrr nrs nsa nsc nse nsn nso nsr nss oaa oac oae oaj oan oao oar oas oc- oca occ ocj ocn oco ocr ocs oea oec oee oen oeo oer oes oja ojc oje ojo ojs on- ona onc one onj onn ono onr ons oo- ooa ooc oon ooo oor oos or- ora orc ore orn oro orr ors os- osa osc ose osj osn oso osr oss ra- raa rac rae raj ran rao rar ras rca rcc rce rcj rcn rco rcr rcs re- rea rec ree ren reo rer res rja rjc rjr rna rnc rnn rno rnr rns roa roc roe roj ron roo ror ros rra rrc rrn rrr rrs rsa rsc rse rsj rsn rso rsr rss saa sac sae saj san sao sar sas sca scc sce scj scn sco scr scs se- sea sec see sej sen seo ser ses sja sjc sje sjj sjr sjs sna snc sne snj snn sno snr sns soa soc soe soj son soo sor sos sr- sra src sre srj srn sro srr srs ss- ssa ssc sse ssj ssn sso ssr sss