-al a-a a-c aaa aac aae aak aal aap ac- aca acc ace ack acl acp aea aec aee aek ael aep aka akc ake akk akl akp al- ala alc ale alk all alp ap- apa apc ape apk apl app c-- caa cac cae cak cal cap cca ccc cce cck ccl ccp ce- cea cec cee cek cel cep cka ckc cl- cla clc cle clk cll clp cpa cpc cpe cpk cpl cpp eaa eac eae eak eal eap ec- eca ecc ece eck ecl eea eec eee eek eel eep eka ekc eke ekl ekp ela elc ele elk ell elp ep- epa epc epe epl epp ka- kaa kac kae kak kal kap kca kcc kce kck kcl kcp ke- kea kec kee kek kel kep kkc kke kkk kkl kkp kl- kla klc kpa kpc kpe kpk kpl kpp l-p la- laa lac lae lak lal lap lca lcc lce lck lcl lcp lea lec lee lek lel lep lka lkl lkp lla llc lle llk lll llp lpa lpc lpe lpk lpl lpp p-p paa pac pae pak pal pap pca pcc pce pck pcl pcp pea pec pee pek pel pep pka pkc pke pkl pkp pla plc ple plk pll plp ppa ppc ppe ppk ppl ppp