-al a-a a-c aaa aac aae aaf aal aap aax ac- aca acc ace acf acl acp acx aea aec aee aef ael aep aex af- afa afc afe aff afl afp afx al- ala alc ale alf all alp alx ap- apa apc ape apf apl app apx ax- axa axe axl axp axx c-- caa cac cae caf cal cap cax cca ccc cce ccf ccl ccp ccx ce- cea cec cee cef cel cep cex cfa cfc cfe cff cfl cfp cfx cl- cla clc cle clf cll clp clx cpa cpc cpe cpf cpl cpp cpx cxc cxf cxl cxp cxx eaa eac eae eaf eal eap eax ec- eca ecc ece ecf ecl ecx eea eec eee eef eel eep eex ef- efa efc efe eff efl efp efx ela elc ele elf ell elp elx ep- epa epc epe epf epl epp epx ex- exa exc exe exl exp exx faa fac fae faf fal fap fax fca fcc fce fcf fcl fcp fcx fea fec fee fef fel fep fex ffa ffc ffe fff ffl ffp ffx fla flc fle flf fll flp flx fpa fpc fpe fpl fpp fpx fxe fxp fxx l-p la- laa lac lae laf lal lap lax lca lcc lce lcf lcl lcp lcx lea lec lee lef lel lep lex lfa lfc lfe lff lfl lfp lfx lla llc lle llf lll llp lpa lpc lpe lpf lpl lpp lpx lxc lxx p-p paa pac pae paf pal pap pax pca pcc pce pcf pcl pcp pcx pea pec pee pef pel pep pex pfa pfc pfe pff pfl pfp pfx pla plc ple plf pll plp plx ppa ppc ppe ppf ppl ppp ppx pxc pxe pxl xaa xac xaf xal xap xcf xcl xcp xcx xee xel xep xex xfa xfe xfl xfx xla xlf xpa xpc xpe xpf xpl xpp xxl xxp xxx