-al a-a a-b a-i aaa aab aag aai aal ab- aba abb abg abi abl ag- aga agb agg agi agl ai- aia aib aig aii ail al- ala alb alg ali all baa bab bag bai bal bba bbb bbg bbi bbl bga bgb bgg bgi bgl bi- bia bib big bii bil bla blb blg bli bll gaa gab gag gai gal gba gbg gbi gbl gga ggb ggg ggi gia gib gig gii gil gla glb glg gli gll ia- iaa iab iag iai ial iba ibb ibg ibi ibl iga igb igg igi igl iia iib iii iil il- ila ilb ilg ili ill la- laa lab lag lai lal lba lbb lbg lbi lbl lga lgb lgg lgi lgl lia lib lig lii lil lla llb llg lli lll