-er a-a a-c a-t aaa aac aae aaj aak aar aat ac- aca acc ace acj ack acr act aea aec aee aej aek aer aet aja ajc aje ajj ajk ajr ajt aka akc ake akj akk akr ar- ara arc are arj ark arr art at- ata atc ate atr att c-- c-j caa cac cae caj cak car cat cca ccc cce ccj cck ccr cct ce- cea cec cee cej cek cer cet cja cjc cjk cjr cka ckc ckt cra crc cre crj crk crr crt cta ctc cte ctk ctr ctt eaa eac eae eaj eak ear eat ec- eca ecc ece ecj eck ecr ect eea eec eee eek eer eet eja ejc ejt eka ekc eke ekr ekt era erc ere erk err ert eta etc ete etj etk etr ett jaa jac jae jaj jak jar jat jca jcc jce jck jcr jct jea jec jee jej jek jer jet jja jjc jjj jjk jjr jka jkk jkr jkt jra jrc jrk jrr jrt jta jtc jte jtk jtr jtt k-t ka- kaa kac kae kaj kak kar kat kca kcc kce kck kcr kct ke- kea kec kee kek ker ket kjc kje kjr kkc kke kkk kkr kkt kra krc krk krr krt kta ktc kte ktj ktk ktr ktt ra- raa rac rae raj rak rar rat rca rcc rce rcj rcr rct re- rea rec ree rek rer ret rja rjc rjk rjr rkc rke rkk rkt rra rrc rrk rrr rrt rta rtc rte rtj rtk rtr rtt taa tac tae taj tak tar tat tca tcc tce tcj tck tcr tct te- tea tec tee tej tek ter tet tjc tje tjr tka tkc tke tkk tkr tkt tra trc tre trk trr trt tta ttc tte ttk ttr ttt