-al -ol a-a a-c aaa aac aad aag aal aao ac- aca acc acd acg acl aco ad- ada adc add adg adl ado ag- aga agc agd agg agl ago al- ala alc ald alg all alo aoa aoc aod aog aol aoo c-- caa cac cad cag cal cao cca ccc ccd ccg ccl cco cda cdc cdd cdg cdl cdo cga cgc cgd cgg cgl cgo cl- cla clc cld clg cll clo co- coa coc cod cog col coo daa dac dad dag dal dao dca dcc dcd dcg dcl dco dda ddc ddd ddg ddl ddo dga dgc dgd dgg dgl dl- dla dlc dld dlg dll dlo doa doc dod dog dol doo g-d gaa gac gad gag gal gao gca gcc gcd gcg gcl gco gda gdc gdd gdl gdo gga ggc ggd ggg ggo gla glc gld glg gll glo goa goc god gog gol goo la- laa lac lad lag lal lao lca lcc lcd lcg lcl lco lda ldc ldd ldg ldl ldo lga lgc lgd lgg lgl lgo lla llc lld llg lll llo loa loc lod log lol loo oaa oac oad oag oal oao oc- oca occ ocd ocg ocl oco oda odc odd odg odl odo oga ogc ogd ogg ogl ogo ola olc old olg oll olo oo- ooa ooc ood oog ool ooo