-er a-a a-c a-t aaa aac aae aaj aak aap aar aat ac- aca acc ace acj ack acp acr act aea aec aee aej aek aep aer aet aja ajc aje ajj ajk ajp ajr ajt aka akc ake akj akk akp akr ap- apa apc ape apj apk app apr apt ar- ara arc are arj ark arp arr art at- ata atc ate atp atr att c-- c-j caa cac cae caj cak cap car cat cca ccc cce ccj cck ccp ccr cct ce- cea cec cee cej cek cep cer cet cja cjc cjk cjp cjr cka ckc ckt cpa cpc cpe cpj cpk cpp cpr cpt cra crc cre crj crk crp crr crt cta ctc cte ctk ctp ctr ctt eaa eac eae eaj eak eap ear eat ec- eca ecc ece ecj eck ecr ect eea eec eee eek eep eer eet eja ejc ejp ejt eka ekc eke ekp ekr ekt ep- epa epc epe epp epr ept era erc ere erk erp err ert eta etc ete etj etk etp etr ett jaa jac jae jaj jak jap jar jat jca jcc jce jck jcp jcr jct jea jec jee jej jek jep jer jet jja jjc jjj jjk jjp jjr jka jkk jkp jkr jkt jpa jpc jpe jpj jpp jpr jpt jra jrc jrk jrp jrr jrt jta jtc jte jtk jtp jtr jtt k-t ka- kaa kac kae kaj kak kap kar kat kca kcc kce kck kcp kcr kct ke- kea kec kee kek kep ker ket kjc kje kjr kkc kke kkk kkp kkr kkt kpa kpc kpe kpk kpp kpr kpt kra krc krk krp krr krt kta ktc kte ktj ktk ktp ktr ktt p-p paa pac pae paj pak pap par pat pca pcc pce pcj pck pcp pcr pct pea pec pee pek pep per pet pja pjc pjp pka pkc pke pkp pkr pkt ppa ppc ppe ppj ppk ppp ppr ppt pra prc pre prk prp prr prt pt- pta ptc pte ptj ptk ptp ptr ptt ra- raa rac rae raj rak rap rar rat rca rcc rce rcj rcp rcr rct re- rea rec ree rek rep rer ret rja rjc rjk rjp rjr rkc rke rkk rkp rkt rpa rpc rpe rpk rpp rpr rpt rra rrc rrk rrp rrr rrt rta rtc rte rtj rtk rtp rtr rtt taa tac tae taj tak tap tar tat tca tcc tce tcj tck tcp tcr tct te- tea tec tee tej tek tep ter tet tjc tje tjp tjr tka tkc tke tkk tkp tkr tkt tpa tpc tpe tpj tpk tpp tpr tpt tra trc tre trk trp trr trt tta ttc tte ttk ttp ttr ttt