-er a-a a-c a-t aaa aac aae aaj aan aao aar aat ac- aca acc ace acj acn aco acr act aea aec aee aej aen aeo aer aet aja ajc aje ajj ajn ajo ajr ajt an- ana anc ane anj ann ano anr ant aoa aoc aoe aoj aon aoo aor aot ar- ara arc are arj arn aro arr art at- ata atc ate atn ato atr att c-- c-j caa cac cae caj can cao car cat cca ccc cce ccj ccn cco ccr cct ce- cea cec cee cej cen ceo cer cet cja cjc cjr cn- cna cnc cne cnj cnn cno cnr cnt co- coa coc coe coj con coo cor cot cra crc cre crj crn cro crr crt cta ctc cte ctn cto ctr ctt eaa eac eae eaj ean eao ear eat ec- eca ecc ece ecj ecn eco ecr ect eea eec eee een eeo eer eet eja ejc ejo ejt en- ena enc ene enn eno enr ent eo- eoa eoc eoe eon eoo eor eot era erc ere ern ero err ert eta etc ete etj etn eto etr ett jaa jac jae jaj jan jao jar jat jca jcc jce jco jcr jct jea jec jee jej jen jeo jer jet jja jjc jjj jjr jna jnc jne jnj jnn jno jnr jnt joa joc joe joj jon joo jor jot jra jrc jrn jro jrr jrt jta jtc jte jtn jtr jtt naa nac nae naj nan nao nar nat nca ncc nce ncn nco ncr nct ne- nea nec nee nej nen neo ner net nja njc nje njn nna nnc nne nnn nno nnt no- noa noc noe noj non noo nor not nra nrc nre nrj nrn nro nrr nrt nta ntc nte ntn nto ntr ntt oaa oac oae oaj oan oao oar oat oc- oca occ ocj ocn oco ocr oct oea oec oee oen oeo oer oet oja ojc oje ojo on- ona onc one onj onn ono onr ont oo- ooa ooc oon ooo oor oot or- ora orc ore orn oro orr ort ot- ota otc ote otn oto otr ott ra- raa rac rae raj ran rao rar rat rca rcc rce rcj rcn rco rcr rct re- rea rec ree ren reo rer ret rja rjc rjr rna rnc rnn rno rnr rnt roa roc roe roj ron roo ror rot rra rrc rrn rrr rrt rta rtc rte rtj rtn rto rtr rtt taa tac tae taj tan tao tar tat tca tcc tce tcj tcn tco tcr tct te- tea tec tee tej ten teo ter tet tjc tje tjo tjr tna tnc tne tnn tno tnr tnt to- toa toc toe toj ton too tor tot tra trc tre trn tro trr trt tta ttc tte ttn tto ttr ttt