-al a-a a-c aaa aac aae aag aak aal aap aax ac- aca acc ace acg ack acl acp acx aea aec aee aeg aek ael aep aex ag- aga agc age agg agk agl agp agx aka akc ake akg akk akl akp al- ala alc ale alg alk all alp alx ap- apa apc ape apg apk apl app apx ax- axa axe axk axl axp axx c-- caa cac cae cag cak cal cap cax cca ccc cce ccg cck ccl ccp ccx ce- cea cec cee ceg cek cel cep cex cga cgc cge cgg cgl cgp cka ckc ckx cl- cla clc cle clg clk cll clp clx cpa cpc cpe cpg cpk cpl cpp cpx cxc cxk cxl cxp cxx eaa eac eae eag eak eal eap eax ec- eca ecc ece ecg eck ecl ecx eea eec eee eeg eek eel eep eex ega egc ege egg egl egp egx eka ekc eke ekg ekl ekp ela elc ele elg elk ell elp elx ep- epa epc epe epg epl epp epx ex- exa exc exe exl exp exx g-p gaa gac gae gag gak gal gap gca gcc gce gcg gck gcl gcp ge- gea gec gee geg gek gel gep gex gga ggc ggg ggp gka gkp gla glc gle glg glk gll glp glx gpa gpc gpe gpg gpk gpl gpp gpx gxa gxl gxp ka- kaa kac kae kag kak kal kap kax kca kcc kce kcg kck kcl kcp kcx ke- kea kec kee keg kek kel kep kex kga kgc kgl kgp kgx kkc kke kkk kkl kkp kl- kla klc klg klx kpa kpc kpe kpk kpl kpp kxl l-p la- laa lac lae lag lak lal lap lax lca lcc lce lcg lck lcl lcp lcx lea lec lee leg lek lel lep lex lga lgc lge lgg lgk lgl lgp lka lkg lkl lkp lla llc lle llg llk lll llp lpa lpc lpe lpg lpk lpl lpp lpx lxc lxx p-p paa pac pae pag pak pal pap pax pca pcc pce pcg pck pcl pcp pcx pea pec pee peg pek pel pep pex pga pgc pge pgg pgk pgl pgp pka pkc pke pkg pkl pkp pla plc ple plg plk pll plp plx ppa ppc ppe ppg ppk ppl ppp ppx pxc pxe pxg pxk pxl xaa xac xag xak xal xap xcl xcp xcx xee xeg xel xep xex xge xgl xgp xke xkl xla xlg xpa xpc xpe xpg xpl xpp xxl xxp xxx