-al -er a-a a-c aaa aac aae aaf aah aak aal aan aar ac- aca acc ace acf ach ack acl acn acr aea aec aee aef aeh aek ael aen aer af- afa afc afe aff afh afk afl afn afr aha ahc ahe ahf ahh ahk ahl ahn ahr aka akc ake akh akk akl akn akr al- ala alc ale alf alh alk all aln alr an- ana anc ane anf anh ank anl ann anr ar- ara arc are arf arh ark arl arn arr c-- caa cac cae caf cah cak cal can car cca ccc cce ccf cch cck ccl ccn ccr ce- cea cec cee cef ceh cek cel cen cer cfa cfc cfe cff cfh cfk cfl cfn cfr ch- cha chc che chf chh chk chl chn chr cka ckc ckh cl- cla clc cle clf clh clk cll cln clr cn- cna cnc cne cnf cnh cnl cnn cnr cra crc cre crf crh crk crl crn crr eaa eac eae eaf eah eak eal ean ear ec- eca ecc ece ecf ech eck ecl ecn ecr eea eec eee eef eek eel een eer ef- efa efc efe eff efh efl efr eha ehc ehe ehf ehh ehl ehn ehr eka ekc eke ekf ekh ekl ekr ela elc ele elf elh elk ell eln elr en- ena enc ene enf enh enk enl enn enr era erc ere erf erh erk erl ern err faa fac fae faf fah fak fal fan far fca fcc fce fcf fck fcl fcn fcr fea fec fee fef feh fek fel fen fer ffa ffc ffe fff ffh ffk ffl ffn ffr fha fhc fhe fhf fhh fhl fhn fhr fka fkc fkf fkk fkl fla flc fle flf fll fln flr fna fnc fne fnf fnh fnk fnl fnn fnr fra frc fre frf frh frk frl frn frr haa hac hae haf hah hak hal han har hca hcc hce hcf hch hck hcl hcn hcr he- hea hec hee hef heh hek hel hen her hfa hfc hfe hff hfh hfk hfl hfn hfr hha hhc hhe hhf hhh hhk hhl hhn hhr hka hkf hkh hkk hkl hkn hkr hla hlc hle hlf hlh hll hln hlr hna hnc hne hnf hnh hnk hnl hnn hr- hra hrc hre hrf hrh hrk hrl hrn hrr ka- kaa kac kae kaf kah kak kal kan kar kca kcc kce kch kck kcl kcn kcr ke- kea kec kee kef keh kek kel ken ker kfa kfc kff kfh kha khe khf khh khk khn khr kkc kke kkh kkk kkl kkn kkr kl- kla klc klf klh klr kn- kna knc kne knf knk knl knn knr kra krc krf krk krl krn krr la- laa lac lae laf lah lak lal lan lar lca lcc lce lcf lch lck lcl lcn lcr lea lec lee lef leh lek lel len ler lfa lfc lfe lff lfh lfk lfl lfn lfr lha lhc lhf lhh lhk lhr lka lkh lkl lkr lla llc lle llf llk lll lln llr lna lnc lne lnh lnk lnl lnn lnr lra lrc lrf lrh lrk lrn lrr naa nac nae naf nah nak nal nan nar nca ncc nce ncf nch nck ncl ncn ncr ne- nea nec nee nef neh nek nel nen ner nfa nfc nfe nff nfk nfl nfn nfr nha nhc nhe nhf nhh nhk nhl nhn nhr nka nkc nke nkf nkk nkn nkr nla nlc nle nlf nlh nlk nll nln nlr nna nnc nne nnf nnh nnk nnl nnn nra nrc nre nrf nrk nrl nrn nrr ra- raa rac rae raf rah rak ral ran rar rca rcc rce rcf rch rcl rcn rcr re- rea rec ree ref reh rek rel ren rer rfa rfc rfe rff rfh rfk rfl rfn rfr rh- rha rhc rhe rhf rhh rhl rhn rhr rkc rke rkf rkk rla rlc rle rlf rlh rll rln rlr rna rnc rnh rnn rnr rra rrc rrf rrh rrk rrl rrn rrr