-al -ol a-a a-c aaa aac aae aag aal aao aav ac- aca acc ace acg acl aco acv aea aec aee aeg ael aeo aev ag- aga agc age agg agl ago agv al- ala alc ale alg all alo alv aoa aoc aoe aog aol aoo aov av- ava avc ave avg avl avo c-- caa cac cae cag cal cao cav cca ccc cce ccg ccl cco ccv ce- cea cec cee ceg cel ceo cev cga cgc cge cgg cgl cgo cgv cl- cla clc cle clg cll clo clv co- coa coc coe cog col coo cov cva cvc cve cvg cvl cvo cvv eaa eac eae eag eal eao eav ec- eca ecc ece ecg ecl eco ecv eea eec eee eeg eel eeo eev ega egc ege egg egl ego ela elc ele elg ell elo elv eo- eoa eoc eoe eog eol eoo eva evc eve evg evl evo evv gaa gac gae gag gal gao gav gca gcc gce gcg gcl gco ge- gea gec gee geg gel geo gev gga ggc ggg ggo ggv gla glc gle glg gll glo glv goa goc goe gog gol goo gov gva gvc gve gvg gvl gvo la- laa lac lae lag lal lao lav lca lcc lce lcg lcl lco lcv lea lec lee leg lel leo lev lga lgc lge lgg lgl lgo lgv lla llc lle llg lll llo llv loa loc loe log lol loo lov lva lvc lve lvg lvl lvv oaa oac oae oag oal oao oav oc- oca occ ocg ocl oco ocv oea oec oee oeg oel oeo oga ogc oge ogg ogl ogo ola olc ole olg oll olo oo- ooa ooc oog ool ooo oov ov- ova ovc ove ovl ovo ovv v-a v-e vaa vac vae vag val vao vav vca vcc vce vcl vco vea vec vee veg vel veo vga vgc vgg vgl vgo vl- vla vlc vle vll vlo vlv voa voc voe vog vol voo vov vva vvc vvg vvo vvv