-al a-a a-c aaa aac aae aak aal aas ac- aca acc ace ack acl acs aea aec aee aek ael aes aka akc ake akk akl aks al- ala alc ale alk all als as- asa asc ase ask asl ass c-- caa cac cae cak cal cas cca ccc cce cck ccl ccs ce- cea cec cee cek cel ces cka ckc cks cl- cla clc cle clk cll cls csa csc cse csk csl css eaa eac eae eak eal eas ec- eca ecc ece eck ecl ecs eea eec eee eek eel ees eka ekc eke ekl eks ela elc ele elk ell els es- esa esc ese esk esl ess ka- kaa kac kae kak kal kas kca kcc kce kck kcl kcs ke- kea kec kee kek kel kes kkc kke kkk kkl kks kl- kla klc kls ksa ksc kse ksk ksl kss la- laa lac lae lak lal las lca lcc lce lck lcl lcs lea lec lee lek lel les lka lkl lks lla llc lle llk lll lls lsa lsc lse lsk lsl lss saa sac sae sak sal sas sca scc sce sck scl scs se- sea sec see sek sel ses sk- ska skc ske skk skl sks sla slc sle slk sll sls ss- ssa ssc sse ssk ssl sss