-al -ol a-a a-c aaa aac aae aag aal aao aap ac- aca acc ace acg acl aco acp aea aec aee aeg ael aeo aep ag- aga agc age agg agl ago agp al- ala alc ale alg all alo alp aoa aoc aoe aog aol aoo aop ap- apa apc ape apg apl apo app c-- caa cac cae cag cal cao cap cca ccc cce ccg ccl cco ccp ce- cea cec cee ceg cel ceo cep cga cgc cge cgg cgl cgo cgp cl- cla clc cle clg cll clo clp co- coa coc coe cog col coo cop cpa cpc cpe cpg cpl cpo cpp eaa eac eae eag eal eao eap ec- eca ecc ece ecg ecl eco eea eec eee eeg eel eeo eep ega egc ege egg egl ego egp ela elc ele elg ell elo elp eo- eoa eoc eoe eog eol eoo eop ep- epa epc epe epg epl epo epp g-p gaa gac gae gag gal gao gap gca gcc gce gcg gcl gco gcp ge- gea gec gee geg gel geo gep gga ggc ggg ggo ggp gla glc gle glg gll glo glp goa goc goe gog gol goo gop gpa gpc gpe gpg gpl gpo gpp l-p la- laa lac lae lag lal lao lap lca lcc lce lcg lcl lco lcp lea lec lee leg lel leo lep lga lgc lge lgg lgl lgo lgp lla llc lle llg lll llo llp loa loc loe log lol loo lop lpa lpc lpe lpg lpl lpo lpp oaa oac oae oag oal oao oap oc- oca occ ocg ocl oco ocp oea oec oee oeg oel oeo oep oga ogc oge ogg ogl ogo ogp ola olc ole olg oll olo olp oo- ooa ooc oog ool ooo oop op- opa opc ope opg opl opo opp p-p paa pac pae pag pal pao pap pca pcc pce pcg pcl pco pcp pea pec pee peg pel peo pep pga pgc pge pgg pgl pgo pgp pla plc ple plg pll plo plp poa poc poe pog pol poo pop ppa ppc ppe ppg ppl ppo ppp