-al a-a a-c aaa aac aae aaf aal aam ac- aca acc ace acf acl acm aea aec aee aef ael aem af- afa afc afe aff afl afm al- ala alc ale alf all alm ama amc ame amf aml amm c-- caa cac cae caf cal cam cca ccc cce ccf ccl ccm ce- cea cec cee cef cel cem cfa cfc cfe cff cfl cfm cl- cla clc cle clf cll clm cma cmc cme cmf cml cmm eaa eac eae eaf eal eam ec- eca ecc ece ecf ecl ecm eea eec eee eef eel eem ef- efa efc efe eff efl efm ela elc ele elf ell elm em- ema emc eme emf eml emm faa fac fae faf fal fam fca fcc fce fcf fcl fcm fea fec fee fef fel fem ffa ffc ffe fff ffl ffm fla flc fle flf fll flm fma fmc fme fmf fml fmm la- laa lac lae laf lal lam lca lcc lce lcf lcl lcm lea lec lee lef lel lem lfa lfc lfe lff lfl lfm lla llc lle llf lll llm lma lmc lme lmf lml lmm m-f maa mac mae maf mal mam mc- mca mcc mce mcf mcl mcm mea mec mee mef mel mem mfa mfc mfe mff mfl mfm mla mlc mle mlf mll mlm mma mmc mme mmf mml mmm