-er a-a a-c aaa aac aae aaj aao aap aar aas ac- aca acc ace acj aco acp acr acs aea aec aee aej aeo aep aer aes aja ajc aje ajj ajo ajp ajr ajs aoa aoc aoe aoj aoo aop aor aos ap- apa apc ape apj apo app apr aps ar- ara arc are arj aro arp arr ars as- asa asc ase asj aso asp asr ass c-- c-j caa cac cae caj cao cap car cas cca ccc cce ccj cco ccp ccr ccs ce- cea cec cee cej ceo cep cer ces cja cjc cjp cjr cjs co- coa coc coe coj coo cop cor cos cpa cpc cpe cpj cpo cpp cpr cps cra crc cre crj cro crp crr crs csa csc cse csj cso csp csr css eaa eac eae eaj eao eap ear eas ec- eca ecc ece ecj eco ecr ecs eea eec eee eeo eep eer ees eja ejc ejo ejp eo- eoa eoc eoe eoo eop eor eos ep- epa epc epe epo epp epr eps era erc ere ero erp err ers es- esa esc ese eso esp esr ess jaa jac jae jaj jao jap jar jas jca jcc jce jco jcp jcr jcs jea jec jee jej jeo jep jer jes jja jjc jjj jjp jjr jjs joa joc joe joj joo jop jor jos jpa jpc jpe jpj jpo jpp jpr jps jra jrc jro jrp jrr jrs jsa jsc jse jsj jso jsp jsr jss oaa oac oae oaj oao oap oar oas oc- oca occ ocj oco ocp ocr ocs oea oec oee oeo oep oer oes oja ojc oje ojo ojs oo- ooa ooc ooo oop oor oos op- opa opc ope opj opo opp opr ops or- ora orc ore oro orp orr ors os- osa osc ose osj oso osp osr oss p-p paa pac pae paj pao pap par pas pca pcc pce pcj pco pcp pcr pcs pea pec pee peo pep per pes pja pjc pjo pjp pjs poa poc poe poo pop por pos ppa ppc ppe ppj ppo ppp ppr pps pra prc pre pro prp prr prs ps- psa psc pse psj pso psp psr pss ra- raa rac rae raj rao rap rar ras rca rcc rce rcj rco rcp rcr rcs re- rea rec ree reo rep rer res rja rjc rjp rjr roa roc roe roj roo rop ror ros rpa rpc rpe rpo rpp rpr rps rra rrc rrp rrr rrs rsa rsc rse rsj rso rsp rsr rss saa sac sae saj sao sap sar sas sca scc sce scj sco scp scr scs se- sea sec see sej seo sep ser ses sja sjc sje sjj sjp sjr sjs soa soc soe soj soo sop sor sos spa spc spe spo spp spr sps sr- sra src sre srj sro srp srr srs ss- ssa ssc sse ssj sso ssp ssr sss