-er a-a a-c a-t aaa aac aae aaj aao aap aar aat ac- aca acc ace acj aco acp acr act aea aec aee aej aeo aep aer aet aja ajc aje ajj ajo ajp ajr ajt aoa aoc aoe aoj aoo aop aor aot ap- apa apc ape apj apo app apr apt ar- ara arc are arj aro arp arr art at- ata atc ate ato atp atr att c-- c-j caa cac cae caj cao cap car cat cca ccc cce ccj cco ccp ccr cct ce- cea cec cee cej ceo cep cer cet cja cjc cjp cjr co- coa coc coe coj coo cop cor cot cpa cpc cpe cpj cpo cpp cpr cpt cra crc cre crj cro crp crr crt cta ctc cte cto ctp ctr ctt eaa eac eae eaj eao eap ear eat ec- eca ecc ece ecj eco ecr ect eea eec eee eeo eep eer eet eja ejc ejo ejp ejt eo- eoa eoc eoe eoo eop eor eot ep- epa epc epe epo epp epr ept era erc ere ero erp err ert eta etc ete etj eto etp etr ett jaa jac jae jaj jao jap jar jat jca jcc jce jco jcp jcr jct jea jec jee jej jeo jep jer jet jja jjc jjj jjp jjr joa joc joe joj joo jop jor jot jpa jpc jpe jpj jpo jpp jpr jpt jra jrc jro jrp jrr jrt jta jtc jte jtp jtr jtt oaa oac oae oaj oao oap oar oat oc- oca occ ocj oco ocp ocr oct oea oec oee oeo oep oer oet oja ojc oje ojo oo- ooa ooc ooo oop oor oot op- opa opc ope opj opo opp opr opt or- ora orc ore oro orp orr ort ot- ota otc ote oto otp otr ott p-p paa pac pae paj pao pap par pat pca pcc pce pcj pco pcp pcr pct pea pec pee peo pep per pet pja pjc pjo pjp poa poc poe poo pop por pot ppa ppc ppe ppj ppo ppp ppr ppt pra prc pre pro prp prr prt pt- pta ptc pte ptj pto ptp ptr ptt ra- raa rac rae raj rao rap rar rat rca rcc rce rcj rco rcp rcr rct re- rea rec ree reo rep rer ret rja rjc rjp rjr roa roc roe roj roo rop ror rot rpa rpc rpe rpo rpp rpr rpt rra rrc rrp rrr rrt rta rtc rte rtj rto rtp rtr rtt taa tac tae taj tao tap tar tat tca tcc tce tcj tco tcp tcr tct te- tea tec tee tej teo tep ter tet tjc tje tjo tjp tjr to- toa toc toe toj too top tor tot tpa tpc tpe tpj tpo tpp tpr tpt tra trc tre tro trp trr trt tta ttc tte tto ttp ttr ttt