-er a-a a-c a-t aaa aac aae aaj aak aan aar aat ac- aca acc ace acj ack acn acr act aea aec aee aej aek aen aer aet aja ajc aje ajj ajk ajn ajr ajt aka akc ake akj akk akn akr an- ana anc ane anj ank ann anr ant ar- ara arc are arj ark arn arr art at- ata atc ate atn atr att c-- c-j caa cac cae caj cak can car cat cca ccc cce ccj cck ccn ccr cct ce- cea cec cee cej cek cen cer cet cja cjc cjk cjr cka ckc ckt cn- cna cnc cne cnj cnn cnr cnt cra crc cre crj crk crn crr crt cta ctc cte ctk ctn ctr ctt eaa eac eae eaj eak ean ear eat ec- eca ecc ece ecj eck ecn ecr ect eea eec eee eek een eer eet eja ejc ejt eka ekc eke ekr ekt en- ena enc ene enk enn enr ent era erc ere erk ern err ert eta etc ete etj etk etn etr ett jaa jac jae jaj jak jan jar jat jca jcc jce jck jcr jct jea jec jee jej jek jen jer jet jja jjc jjj jjk jjr jka jkk jkn jkr jkt jna jnc jne jnj jnn jnr jnt jra jrc jrk jrn jrr jrt jta jtc jte jtk jtn jtr jtt k-t ka- kaa kac kae kaj kak kan kar kat kca kcc kce kck kcn kcr kct ke- kea kec kee kek ken ker ket kjc kje kjr kkc kke kkk kkn kkr kkt kn- kna knc kne knk knn knr knt kra krc krk krn krr krt kta ktc kte ktj ktk ktn ktr ktt naa nac nae naj nak nan nar nat nca ncc nce nck ncn ncr nct ne- nea nec nee nej nek nen ner net nja njc nje njk njn nka nkc nke nkj nkk nkn nkr nkt nna nnc nne nnk nnn nnt nra nrc nre nrj nrk nrn nrr nrt nta ntc nte ntk ntn ntr ntt ra- raa rac rae raj rak ran rar rat rca rcc rce rcj rcn rcr rct re- rea rec ree rek ren rer ret rja rjc rjk rjr rkc rke rkk rkt rna rnc rnn rnr rnt rra rrc rrk rrn rrr rrt rta rtc rte rtj rtk rtn rtr rtt taa tac tae taj tak tan tar tat tca tcc tce tcj tck tcn tcr tct te- tea tec tee tej tek ten ter tet tjc tje tjr tka tkc tke tkk tkr tkt tna tnc tne tnk tnn tnr tnt tra trc tre trk trn trr trt tta ttc tte ttk ttn ttr ttt