-er a-a a-c a-t aaa aac aae aaj aao aap aar aas aat ac- aca acc ace acj aco acp acr acs act aea aec aee aej aeo aep aer aes aet aja ajc aje ajj ajo ajp ajr ajs ajt aoa aoc aoe aoj aoo aop aor aos aot ap- apa apc ape apj apo app apr aps apt ar- ara arc are arj aro arp arr ars art as- asa asc ase asj aso asp asr ass ast at- ata atc ate ato atp atr ats att c-- c-j caa cac cae caj cao cap car cas cat cca ccc cce ccj cco ccp ccr ccs cct ce- cea cec cee cej ceo cep cer ces cet cja cjc cjp cjr cjs co- coa coc coe coj coo cop cor cos cot cpa cpc cpe cpj cpo cpp cpr cps cpt cra crc cre crj cro crp crr crs crt csa csc cse csj cso csp csr css cst cta ctc cte cto ctp ctr cts ctt eaa eac eae eaj eao eap ear eas eat ec- eca ecc ece ecj eco ecr ecs ect eea eec eee eeo eep eer ees eet eja ejc ejo ejp ejt eo- eoa eoc eoe eoo eop eor eos eot ep- epa epc epe epo epp epr eps ept era erc ere ero erp err ers ert es- esa esc ese eso esp esr ess est eta etc ete etj eto etp etr ets ett jaa jac jae jaj jao jap jar jas jat jca jcc jce jco jcp jcr jcs jct jea jec jee jej jeo jep jer jes jet jja jjc jjj jjp jjr jjs joa joc joe joj joo jop jor jos jot jpa jpc jpe jpj jpo jpp jpr jps jpt jra jrc jro jrp jrr jrs jrt jsa jsc jse jsj jso jsp jsr jss jst jta jtc jte jtp jtr jts jtt oaa oac oae oaj oao oap oar oas oat oc- oca occ ocj oco ocp ocr ocs oct oea oec oee oeo oep oer oes oet oja ojc oje ojo ojs oo- ooa ooc ooo oop oor oos oot op- opa opc ope opj opo opp opr ops opt or- ora orc ore oro orp orr ors ort os- osa osc ose osj oso osp osr oss ost ot- ota otc ote oto otp otr ots ott p-p paa pac pae paj pao pap par pas pat pca pcc pce pcj pco pcp pcr pcs pct pea pec pee peo pep per pes pet pja pjc pjo pjp pjs poa poc poe poo pop por pos pot ppa ppc ppe ppj ppo ppp ppr pps ppt pra prc pre pro prp prr prs prt ps- psa psc pse psj pso psp psr pss pst pt- pta ptc pte ptj pto ptp ptr pts ptt ra- raa rac rae raj rao rap rar ras rat rca rcc rce rcj rco rcp rcr rcs rct re- rea rec ree reo rep rer res ret rja rjc rjp rjr roa roc roe roj roo rop ror ros rot rpa rpc rpe rpo rpp rpr rps rpt rra rrc rrp rrr rrs rrt rsa rsc rse rsj rso rsp rsr rss rst rta rtc rte rtj rto rtp rtr rts rtt saa sac sae saj sao sap sar sas sat sca scc sce scj sco scp scr scs sct se- sea sec see sej seo sep ser ses set sja sjc sje sjj sjp sjr sjs sjt soa soc soe soj soo sop sor sos sot spa spc spe spo spp spr sps spt sr- sra src sre srj sro srp srr srs srt ss- ssa ssc sse ssj sso ssp ssr sss sst sta stc ste stj sto stp str sts stt taa tac tae taj tao tap tar tas tat tca tcc tce tcj tco tcp tcr tcs tct te- tea tec tee tej teo tep ter tes tet tjc tje tjo tjp tjr tjs to- toa toc toe toj too top tor tos tot tpa tpc tpe tpj tpo tpp tpr tps tpt tra trc tre tro trp trr trs trt tsa tsc tse tsj tso tsp tsr tss tst tta ttc tte tto ttp ttr tts ttt