-al a-a a-c aaa aac aae aal aap aas ac- aca acc ace acl acp acs aea aec aee ael aep aes al- ala alc ale all alp als ap- apa apc ape apl app aps as- asa asc ase asl asp ass c-- caa cac cae cal cap cas cca ccc cce ccl ccp ccs ce- cea cec cee cel cep ces cl- cla clc cle cll clp cls cpa cpc cpe cpl cpp cps csa csc cse csl csp css eaa eac eae eal eap eas ec- eca ecc ece ecl ecs eea eec eee eel eep ees ela elc ele ell elp els ep- epa epc epe epl epp eps es- esa esc ese esl esp ess l-p la- laa lac lae lal lap las lca lcc lce lcl lcp lcs lea lec lee lel lep les lla llc lle lll llp lls lpa lpc lpe lpl lpp lps lsa lsc lse lsl lsp lss p-p paa pac pae pal pap pas pca pcc pce pcl pcp pcs pea pec pee pel pep pes pla plc ple pll plp pls ppa ppc ppe ppl ppp pps ps- psa psc pse psl psp pss saa sac sae sal sap sas sca scc sce scl scp scs se- sea sec see sel sep ses sla slc sle sll slp sls spa spc spe spl spp sps ss- ssa ssc sse ssl ssp sss