-al -ol a-a a-c aaa aac aae aag aah aal aao ac- aca acc ace acg ach acl aco aea aec aee aeg aeh ael aeo ag- aga agc age agg agh agl ago aha ahc ahe ahg ahh ahl aho al- ala alc ale alg alh all alo aoa aoc aoe aog aoh aol aoo c-- caa cac cae cag cah cal cao cca ccc cce ccg cch ccl cco ce- cea cec cee ceg ceh cel ceo cga cgc cge cgg cgh cgl cgo ch- cha chc che chg chh chl cho cl- cla clc cle clg clh cll clo co- coa coc coe cog coh col coo eaa eac eae eag eah eal eao ec- eca ecc ece ecg ech ecl eco eea eec eee eeg eel eeo ega egc ege egg egh egl ego eha ehc ehe ehg ehh ehl eho ela elc ele elg elh ell elo eo- eoa eoc eoe eog eoh eol eoo gaa gac gae gag gah gal gao gca gcc gce gcg gch gcl gco ge- gea gec gee geg geh gel geo gga ggc ggg ggh ggo gha ghc ghe ghg ghh ghl gho gla glc gle glg glh gll glo goa goc goe gog goh gol goo haa hac hae hag hah hal hao hca hcc hce hcg hch hcl hco he- hea hec hee heg heh hel heo hga hgc hge hgg hgh hgl hgo hha hhc hhe hhg hhh hhl hho hla hlc hle hlg hlh hll hlo hoa hoc hoe hog hoh hol hoo la- laa lac lae lag lah lal lao lca lcc lce lcg lch lcl lco lea lec lee leg leh lel leo lga lgc lge lgg lgh lgl lgo lha lhc lhh lho lla llc lle llg lll llo loa loc loe log loh lol loo oaa oac oae oag oah oal oao oc- oca occ ocg och ocl oco oea oec oee oeg oeh oel oeo oga ogc oge ogg ogh ogl ogo oha ohc ohe ohg ohh ohl oho ola olc ole olg oll olo oo- ooa ooc oog ooh ool ooo