-al -ol a-a a-c aaa aac aae aag aal aan aao ac- aca acc ace acg acl acn aco aea aec aee aeg ael aen aeo ag- aga agc age agg agl agn ago al- ala alc ale alg all aln alo an- ana anc ane ang anl ann ano aoa aoc aoe aog aol aon aoo c-- caa cac cae cag cal can cao cca ccc cce ccg ccl ccn cco ce- cea cec cee ceg cel cen ceo cga cgc cge cgg cgl cgn cgo cl- cla clc cle clg cll cln clo cn- cna cnc cne cng cnl cnn cno co- coa coc coe cog col con coo eaa eac eae eag eal ean eao ec- eca ecc ece ecg ecl ecn eco eea eec eee eeg eel een eeo ega egc ege egg egl egn ego ela elc ele elg ell eln elo en- ena enc ene eng enl enn eno eo- eoa eoc eoe eog eol eon eoo gaa gac gae gag gal gan gao gca gcc gce gcg gcl gcn gco ge- gea gec gee geg gel gen geo gga ggc ggg ggn ggo gla glc gle glg gll gln glo gna gnc gne gnl gnn gno goa goc goe gog gol gon goo la- laa lac lae lag lal lan lao lca lcc lce lcg lcl lcn lco lea lec lee leg lel len leo lga lgc lge lgg lgl lgn lgo lla llc lle llg lll lln llo lna lnc lne lng lnl lnn lno loa loc loe log lol lon loo naa nac nae nag nal nan nao nca ncc nce ncg ncl ncn nco ne- nea nec nee neg nel nen neo nga ngc nge ngg ngl ngn ngo nla nlc nle nlg nll nln nlo nna nnc nne nng nnl nnn nno no- noa noc noe nog nol non noo oaa oac oae oag oal oan oao oc- oca occ ocg ocl ocn oco oea oec oee oeg oel oen oeo oga ogc oge ogg ogl ogn ogo ola olc ole olg oll oln olo on- ona onc one ong onl onn ono oo- ooa ooc oog ool oon ooo