-al -er a-a a-c aaa aac aae aak aal aan aar ac- aca acc ace ack acl acn acr aea aec aee aek ael aen aer aka akc ake akk akl akn akr al- ala alc ale alk all aln alr an- ana anc ane ank anl ann anr ar- ara arc are ark arl arn arr c-- caa cac cae cak cal can car cca ccc cce cck ccl ccn ccr ce- cea cec cee cek cel cen cer cka ckc cl- cla clc cle clk cll cln clr cn- cna cnc cne cnl cnn cnr cra crc cre crk crl crn crr eaa eac eae eak eal ean ear ec- eca ecc ece eck ecl ecn ecr eea eec eee eek eel een eer eka ekc eke ekl ekr ela elc ele elk ell eln elr en- ena enc ene enk enl enn enr era erc ere erk erl ern err ka- kaa kac kae kak kal kan kar kca kcc kce kck kcl kcn kcr ke- kea kec kee kek kel ken ker kkc kke kkk kkl kkn kkr kl- kla klc klr kn- kna knc kne knk knl knn knr kra krc krk krl krn krr la- laa lac lae lak lal lan lar lca lcc lce lck lcl lcn lcr lea lec lee lek lel len ler lka lkl lkr lla llc lle llk lll lln llr lna lnc lne lnk lnl lnn lnr lra lrc lrk lrn lrr naa nac nae nak nal nan nar nca ncc nce nck ncl ncn ncr ne- nea nec nee nek nel nen ner nka nkc nke nkk nkn nkr nla nlc nle nlk nll nln nlr nna nnc nne nnk nnl nnn nra nrc nre nrk nrl nrn nrr ra- raa rac rae rak ral ran rar rca rcc rce rcl rcn rcr re- rea rec ree rek rel ren rer rkc rke rkk rla rlc rle rll rln rlr rna rnc rnn rnr rra rrc rrk rrl rrn rrr