-al -er a-a a-c a-t aaa aac aae aaf aak aal aan aar aat ac- aca acc ace acf ack acl acn acr act aea aec aee aef aek ael aen aer aet af- afa afc afe aff afk afl afn afr aft aka akc ake akk akl akn akr al- ala alc ale alf alk all aln alr alt an- ana anc ane anf ank anl ann anr ant ar- ara arc are arf ark arl arn arr art at- ata atc ate atf atl atn atr att c-- caa cac cae caf cak cal can car cat cca ccc cce ccf cck ccl ccn ccr cct ce- cea cec cee cef cek cel cen cer cet cfa cfc cfe cff cfk cfl cfn cfr cft cka ckc ckt cl- cla clc cle clf clk cll cln clr clt cn- cna cnc cne cnf cnl cnn cnr cnt cra crc cre crf crk crl crn crr crt cta ctc cte ctf ctk ctl ctn ctr ctt eaa eac eae eaf eak eal ean ear eat ec- eca ecc ece ecf eck ecl ecn ecr ect eea eec eee eef eek eel een eer eet ef- efa efc efe eff efl efr eft eka ekc eke ekf ekl ekr ekt ela elc ele elf elk ell eln elr elt en- ena enc ene enf enk enl enn enr ent era erc ere erf erk erl ern err ert eta etc ete etf etk etl etn etr ett faa fac fae faf fak fal fan far fat fca fcc fce fcf fck fcl fcn fcr fct fea fec fee fef fek fel fen fer fet ffa ffc ffe fff ffk ffl ffn ffr fft fka fkc fkf fkk fkl fkt fla flc fle flf fll fln flr flt fna fnc fne fnf fnk fnl fnn fnr fnt fra frc fre frf frk frl frn frr frt fta ftc fte ftf ftk ftl ftn ftr ftt k-t ka- kaa kac kae kaf kak kal kan kar kat kca kcc kce kck kcl kcn kcr kct ke- kea kec kee kef kek kel ken ker ket kfa kfc kff kkc kke kkk kkl kkn kkr kkt kl- kla klc klf klr klt kn- kna knc kne knf knk knl knn knr knt kra krc krf krk krl krn krr krt kta ktc kte ktf ktk ktl ktn ktr ktt la- laa lac lae laf lak lal lan lar lat lca lcc lce lcf lck lcl lcn lcr lct lea lec lee lef lek lel len ler let lfa lfc lfe lff lfk lfl lfn lfr lft lka lkl lkr lkt lla llc lle llf llk lll lln llr llt lna lnc lne lnk lnl lnn lnr lnt lra lrc lrf lrk lrn lrr lrt lta ltc lte ltf ltk ltl ltr ltt naa nac nae naf nak nal nan nar nat nca ncc nce ncf nck ncl ncn ncr nct ne- nea nec nee nef nek nel nen ner net nfa nfc nfe nff nfk nfl nfn nfr nft nka nkc nke nkf nkk nkn nkr nkt nla nlc nle nlf nlk nll nln nlr nlt nna nnc nne nnf nnk nnl nnn nnt nra nrc nre nrf nrk nrl nrn nrr nrt nta ntc nte ntf ntk ntn ntr ntt ra- raa rac rae raf rak ral ran rar rat rca rcc rce rcf rcl rcn rcr rct re- rea rec ree ref rek rel ren rer ret rfa rfc rfe rff rfk rfl rfn rfr rft rkc rke rkf rkk rkt rla rlc rle rlf rll rln rlr rlt rna rnc rnn rnr rnt rra rrc rrf rrk rrl rrn rrr rrt rta rtc rte rtf rtk rtl rtn rtr rtt taa tac tae taf tak tal tan tar tat tca tcc tce tcf tck tcl tcn tcr tct te- tea tec tee tef tek tel ten ter tet tfa tfc tfe tff tfk tfl tfn tfr tft tka tkc tke tkk tkl tkr tkt tla tlc tle tlf tlk tll tln tlr tlt tna tnc tne tnf tnk tnl tnn tnr tnt tra trc tre trf trk trl trn trr trt tta ttc tte ttf ttk ttl ttn ttr ttt