-al -th a-a a-b a-t aaa aab aag aah aal aat ab- aba abb abg abh abl abt ag- aga agb agg agh agl agt aha ahb ahg ahh ahl aht al- ala alb alg alh all alt at- ata atb atg ath atl att baa bab bag bah bal bat bba bbb bbg bbh bbl bbt bga bgb bgg bgh bgl bgt bha bhb bhg bhh bhl bht bla blb blg blh bll blt bta btb btg bth btl btt gaa gab gag gah gal gat gba gbg gbh gbl gbt gga ggb ggg ggh ggt gha ghb ghg ghh ghl ght gla glb glg glh gll glt gta gtb gtg gth gtl gtt haa hab hag hah hal hat hba hbb hbg hbh hbl hbt hga hgb hgg hgh hgl hgt hha hhb hhg hhh hhl hht hla hlb hlg hlh hll hlt hta htb htg hth htl htt la- laa lab lag lah lal lat lba lbb lbg lbh lbl lbt lga lgb lgg lgh lgl lgt lha lhb lhh lht lla llb llg lll llt lta ltb ltg lth ltl ltt taa tab tag tah tal tat tba tbb tbg tbh tbl tbt tga tgb tgg tgh tgl tgt th- tha thb thg thh thl tht tla tlg tlh tll tlt tta ttb ttg tth ttl ttt